But I don't think that matters. It took a while the pumps were the worst part. Also make sure you have proper water flow (nothing is clogged). I just set it to the max heat setting and let it run until the tub is up to the temperature I want... in the future, I want to build a controller for it so I can have it maintain the tub temperature and maybe even make it remote controllable over the internet. I like the idea that you let it cool and only heat it with the propane heater.. I also love the idea of plumbing up both the return from the tub and a fresh water supply. Reply While looking at the specs and reviews I was concerned about the heating capacity of the unit. The heater can't function properly unless the pump is running and water is circulating in the spa. Actually, the hot heater is an essential part in the hot tub which runs to give the hot water for a tub. 10 days ago, Question The hot tub I heat from cold.That intex heater eat electric and cant maintain the heat if you are in it. It must be mounted outside where adequate ventilation is provided. DIY your own hot tub and use your stock tank pool year round! Thanks for sharing the modifications you made! There is a slowdown of production of them in China so the price has about tripled. This heating solution im thinking of would be completely separate from the hot tub. Electric and it is 5 years old. They fit into compact spaces - even under spa skirts or steps. Heater Kit for a wooden hot tub. Attach the power supply to the water pump. The Hydro-Quip HEATMAX series heater is the most efficient hot tub heater in a box. In fact, the hot tub does not have to mean without the hot water. It is 68000 BTU max Enough to heat a medium size above ground pool. The strainer and timer are both great ideas. 8 months ago, This setup is very popular and the heaters are from amazon and the 18L per our can cost you just over $100 that can heat a pool rather quickly, Intex PureSpa 6-Person Portable Inflatable Bubble Jet Ho t Tub, DIY Composite Layup and Vacuum Bagging - Making a Carbon Fiber RipSurf for Braille Skateboarding. Then, press the mesh until stuck and paste into the container using the wire. When you are ready to connect the pump power supply and water will begin to flow. (3) Install connecting pipes from heater to the tub. My nephew made it a permanent part of his pool with it integrated into his pool pump and mounted on a wall next to his pool. I did it ! Quite a few commenters suggested using a hot water based pump. drop a large pond pump in the tub, attach it to a long garden hose and lay over the pathway to the tub. the heater continues working without resetting. Apply Teflon tape to the threading and hand tighten the 1/2" coupling and 1/2" to hose barb to the water inlet and outlet on the water heater unit. The tub is made from a big plastic tote tub, and the heater from an old propane bottle. Set it well in order to the gas burner parts fit into the hole. The 1,300 Watt heating unit only heats the water 1-2 degrees Fahrenheit an hour. I like how portable you made the unit. I also put a garden hose bypass on the unit so you can either use a hose or the pump. Then, saw the marked container using the hacksaw. I have run mine for well over 20 minutes without it shutting down though... maybe mine is defective or does not have the 20 minute time out, I don't know. I am curious to replace that original pump with one designed for hot water. I got taken.. Wow that looks amazing. ALEKO. Then the pump begins to sputter and the heater won't ignite. Then put in the gas jets into the gas burner and connect with the gas tube. Therefore, a hot tub with a 240-volt heater will use about 7,500 watts. Place the gas burner in the container. With the pool you will use a full tank of a 20 pound tank, but if you want to extend your season or a party and just a few degrees, this is perfect for that. I upgraded the unit a little. Or do you just keep the tub heater on and use this to supplement the heat? In many installations, where the hot tub is being heated via an electric heater … Connect the supplied propane supply line to a 20 lb propane tank and check for leaks by using soapy water on connection points. I put a basked on for the propane tank. I am suggesting this pump as a replacement 3 GPM hot water pump. I am stumped.. 10 days ago Set up the temperature and leave it till your desired heat … Basicly legal gouging. 6. Fire Box Internal: 22 ½" 16" and 10" Power Rating 20 Kw (70,000 BTU) Includes Complete heater, 3 sections of stainless steel stove pipe, rain cap, internal temperature gauge, cast iron grates, Pressure release valve, ½” drain valve Feature The Bonfire is a great hot tub … 68 Results Heat Source Type: Electric Heater. Most 220v/50amp electric hot tubs have a 5.5 kw heater which heats around 3 degrees per depending on ambient temperatures. After that, arrange the copper tubing as size as the gas burner. $3000 - $4000. 110v/15amp electric hot tubs have 1.5 kw heater which heats dramatically … I managed to find an Intex tub on Amazon and I paid right about $800 for it (OUCH).. but it is what she wanted and it was about 1/2 of what the beach condo would have cost anyway. Good Luck! Unless you are a qualified welder/engineer there is simply too much that could go wrong trying to DIY … Reuse the materials you have, and you’ll spend almost nothing to complete this project. How old is it? Recently completed a setup very similar to this. The tub is an Intex 28409E. This heats the water and you can extend you soaking time all night if you want to. If you see bubbles turn off the propane and tighten that connection point, do not overtighten. Wife has been wanting one for a couple of years now and we have been putting it off.. I don't know how much we would use it in cooler weather... and running the electric heater all the time once the temperature drops will be very expensive.. Knowing I can heat it in a couple of hours from cold means that I can keep it going without breaking the bank. DIY Hot Tub Heater; One of the easiest ways of heating a hot tub without an electric heater is by creating your own hot tub heater. Make the hole from the opposite direction about 1.5″ diameter. Reply What makes this idea for a DIY hot tub impressive is it’s a hot tub put into the ground and finished out with a waterfall and stonework. I am not sure if it will have the same water pressure as the original pump above. Again thank you for the quick reply.. First thing is for me to build a small deck to put it on (it is in the mud right now) then I will buy the heater. Once water flow is detected in the water heater it will auto start the flame. Best Electric Pool Heaters – Hot Tub and SPA Electric Heaters. Material Aluminum Dimensions 732 x 466 x 491 H (28.8” x 18.3” x 19.3” ) H x L x W Weight 30 Kg (66 lbs.) Can you keep the tub heater turned off, let the water cool all the way down and use the propane heater to get it hot quickly? Indoor. Brands inc Balboa, LX. Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater, Flojet 03526-144A Triplex Diaphragm Automatic W ater System Pump, 2.9 GPM 50 PSI, 12 volt DC, 4 - 1/2 to 1 1/4 " stainless steel hose clamps, 2 - 10' braided vinyl tubing 1/2" inner diameter, Kastar AC Adapter, Power Supply 12V 6A 72W. Reply Customer reviews also indicated they had a significant increase in their electrical bill. My hot tub produces a code that says heater may be dry and only half the jets work. Over $5000. The cover guy recommends that you purchase a specially built wood-fired hot tub heater rather than attempting to build your own from scratch. Hot Tub DIY - next day delivery on spa and hot tub heaters, heater seals, elements and spa heater parts. Our new soaking bathtub heater is designed to maintain the bathtubs water temperature between 102°F and 104°F. Once no leaks are detected mount it in a safe location. Can you keep the tub heater turned off, let the water cool all the way down and use the propane heater to get it hot quickly? reviews also indicated they had a significant increase in their electrical bill. Portable Water Heater for a Hot Tub or Pool: I recently purchased a portable hot tub - Intex PureSpa 6-Person Portable Inflatable Bubble Jet Ho t Tub. It is a Mira. Add a farmhouse mood to your backyard by giving your hot tub a rustic look. Pretty funky wood fired hot tub heater. I typically let the unit run for an hour and then allow the system to rest for a little while before restarting. Connect the power of the pump to an Insteon or z wave outlet (GFI) so when snow is forecasted, just turn on the pump and let the water from the hot tub … Also, on mine, the temp display is intermittent... sometimes it works, but mostly it shows wildy wrong temperatures.. Keep in mind that most supposed faults … Make sure you cover it when not in use from the rain. 3 months ago. ALMOST HEAVEN SAUNAS. Going to use this on an Intex six person bubble tub. 5 weeks ago. :-), Reply $1000 - $2000. Ensure you follow the directional arrow that indicates the flow of water through the pump so it draws water from the water source and into the water heater. I then have to back flush the heater to get it working again. Ensure both ends of the hose are underwater. While the cost of a heater is expensive enough if you are getting it broken and need to change by new one. Immersion Electric Water Heater, Submersible Hot Water Warmer, Portable Small Pool Heater above Ground, Can Heat 5 Gallons Water In Minutes Used in Bucket, Tub, Kiddie Inflatable Pool, … Share it with us! You will love the heater and you did not get killed on the tub. Yes.. Using the hose barb connections supplied with the pump attach the hoses and tighten with hose clamps. With the 10L heater and the same pump.. works great! This pool is not wood-fired and it's not gas. ... ALEKO 4-Person Electric Sauna with 4.5 kW ETL Electric Heater … Or do you just keep the tub heater on and use this to supplement the heat? It's an electric heater and can even be used to heat your pool in the summer. … Brian's $350 Solar Heated Hot Tub. Home Saunas. Home Saunas . I will be using it with the Intex 6 person (yea six little persons) spa.. Hot Tub Heaters and Spare Parts Big Brands … Did you make this project? It works great, until we turn on the air jets on the tub. cover the hose with raised decking. The outside of the barrel is negative (-) and the inside is positive (+). Please let me know what you think for my first Instructable. 5 months ago. If you have piped gas to your house this is a very reasonable alternative to a pool heater. I love the hand truck setup. If you have a wooden hot tub and require a simple but effective heating system then this bundle is for you and all that you require is contained: a heater, a pump and a filter … Stick the copper tubing using the hot tin. Please Note: Our electric hot tub heaters will be available soon…We have developed a unique electric heating system designed specifically for hot tubs, featuring a small, quiet circulating pump and a high-efficiency, programmable electric heater. Built one just like you did, but I put mine on a hand truck. Ensure propane is turned on. Many household developers try to experiment the heater with the low cost by using the tools that exist around us. Do not plug the pump in until all water connections are attached and the suction end is submerged in the water. Railroad Rail Lantern / Sign Stand Split With Axe. Or small pool heaters, specifically. Also how much propane are you guys using? DIY Hot Tub Heater: The Material & The Steps for Homemade Set Hot Tub Spas & Home Saunas. They where 1300 last month for the 6 person. I figured out that I needed screening for the pump so that foreign objects don't get caught in the pump. The purpose is to insert the copper tubing to oil container. on Step 7. It becomes famous because the hot water that functions to give the relaxing and therapy for our body. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted 4.5 out of 5 stars 4,135 $156.55 $ 156 . This information lead me to come up with a portable water heater solution. (1) Prepare a non-combustible foundation (cement or tile) next to the soaking tub to receive the Chofu heater. Hot Tub Heaters: Gas vs. Electric. Hayward electric spa heaters contain all of the sophisticated features and capabilities of heaters twice their size. Now moving the unit is so much easier . This DIY hot tub is simple to make, you can finish it in two days. In the old days, all hot tub heaters were gas-fired heaters. If you want to try this hot tub heater, turn the valve to flow the water out. Product Description. Relax in whatever you are heating and watch the temperature rise. Home > Electrical Parts > Heaters. I have not had an issue of it shutting off at the 20 minute mark. Check all connection points to ensure they are adequately tight and not leaking. Something that appears to be a reoccurring problem is the pump overheats. Then, bind the outer gas burner parts using the wire. The hot tub heater would still be in place but … I ordered a 10L 2.7GPM heater and a hot water recirculation pump with 3 settings low to high says it handles up to 13gpm.....and a timer to trick the heater....instead of using a hand truck id like to make it stationary with it being winter as long as timer kicks on pump once every hr it shouldn't freeze and bust right ? Hot Tub … What is it? Portable Water Heater for a Hot Tub or Pool: I recently purchased a portable hot tub. Prepare the gas jets, then stick into the gas stove nuzzle and fit copper tubing. Here are the basic pieces that I used to make the portable hot water heater. Now, make the two small holes at the bottom and the upper oil container. However, before replacing the heater, check the control panel to make sure your tub is operating properly. It does not maintain the heat when the bubbles are running.. and this is in the summer.. Sometimes, people do not want to change it because they need the high costs. All images or other materials were taken from the web and believed to be in the public domain. Here is a link for the heater 95.00 https://www.ebay.com/itm/5GPM-18L-Hot-Water-Heater-Propane-Gas-Instant-Tankless-Boiler-LPG/164352191355?hash=item2644276b7b:g:5fgAAOSwiUdfRIbD. If by any chance it violates your copyright, please, Exercise Hot Tub That You Can Do To Get More Enjoyment Therapy, 10 Hot Tub Enclosure Winter Ideas That You Have to Build at Home, 25+ Breathtaking Hot Tub Pool Combo Design Ideas To Steal, Built In Hot Tub: 25+ Mesmerizing Ideas for Exhilarating Backyard, In Ground Spa: Luxurious Relaxing Asset At Your Home, 25+ Gorgeously Earthy Hot Tub Area Landscaping Ideas To Steal, 4 Tips on How to Make the Most Out of Small Space, How to Arrange Your First Kitchen on a Budget, Here Are 5 Easy Steps On How To Paint a Dining Room Table, How to Soundproof a Bedroom Door By Yourself | 11 Simple Tips, 20+ Mesmerizingly Inspiring Hot Tub Under Deck Design Ideas, 25+ Most Inspiring Hot Tub Decor Ideas To Enhance Your Outdoor Space, 25+ Most Beautiful Hot Tub Backyard Ideas To Improve Your Home, Leisure Bay Hot Tub | Models and Specs of The Elite Series, Firstly, mark the bottom of the oil container using the screwdriver about 3.2″ W x 7.5″ L. Note W: vertical and L: Horizontal. That way you can switch over to fresh water to rinse off after getting out of the tub. It can be used to heat any tub … Thanks for the idea. VmInnovation and companies like them took over the market and are marking it as a supply and demand. If you don't mind.. how well does it work.. and how do you use it? But I think this unit is a performer. If your hot tub isn't quite as hot as it used to be, your heater may be on the way out. Check the switches for the hot tub heater and the motor or pump. Again, this isn’t a tutorial and would require quite a bit of carpentry skill, but if you have the skills, then put it to work on this beautiful project. I wanted to have a digital reading and a more powerful heating system. 5.5kW OR 11kW for new and existing applications where a full high flow free standing heater … I recently purchased a portable hot tub - Intex PureSpa 6-Person Portable Inflatable Bubble Jet Ho t Tub. Enjoy building. I was originally worried about the auto shut off, however, it has not been an issue. 1 year ago. A timer for the 20 minute shut off. HYDROQUIP HEATMAX ELECTRIC HEATER. Make sure you saw it depend on the size. We provide the video about DIY hot tub heater at home from Heritage Craft. Like all Hayward heaters, … Great idea. 2 years ago. Affix the hose to both of the hose barbs and tighten with the hose clamps. Great question. Product Overview. If you are familiar with a traditional Japanese soaking tub, then you already know about using direct fire to heat your tub… (2) Cut two holes in the side of the tub wall for thru-wall ports. Most hot tubs were not kept hot all the time, and they were not covered with … When all you need is heat, this is the most practical and user friendly unit in the industry. Then, turn on the lighters and give it to the gas burner in order to the fire on. Additionally, since you’ll be using wood, your DIY hot tub … If you don't mind.. how well does it work.. and how do you use it? Careful of the prices on the intex tub prices right now. Note: The hot tub heater above depend on your hot tub including the hot tub size, the volume water, and supported features. How did you bypass the 20 minute auto shut off feature of the water heater? Altair - a Tripod Mounted Refracting Telescope, https://www.ebay.com/itm/5GPM-18L-Hot-Water-Heater-Propane-Gas-Instant-Tankless-Boiler-LPG/164352191355?hash=item2644276b7b:g:5fgAAOSwiUdfRIbD. Finally, you can place the homemade hot tub heater at the edge of the hot tub. If both of these check out and you still have cold water, it's time for a new heater. I tested it on a tub of water, and within minutes the water was steaming. Contractor's Assistant: How long has this been going on with your heater… This tub is extremely easy to use, as it has a fiberglass liner that is easy to clean and an electric heater, which does not require any care while heating the tub. Next, take the water inlet and insert to the valve. This should be supervised at all times by a qualified adult. I am not a handyman by any means so suggestions and optimization ideas are very welcome. I used a timer 19 min on 1 min off then back on, Reply I imagine when the air is cold those bubbles will cool it down really fast. Be careful, if you have the water flow turned low and the gas high it is capable of producing hot enough water to scold and burn. Updated July 8, … Nowadays, many people change over the hot tub heater into the manual homemade which harness the provided tools at home. I had plenty of space under my deck where the heat could dissipate and not overheat the wood. You can view this in the flame window on the front of the water heater unit. The suction hose must remain submerged at all times. Contractor's Assistant: Is your heater gas or electric? If not already installed place the 2 D cell batteries in the water heater. The timer is set at 19 min on and 1 min off in a loop. Behind the hot water that you enjoy, there are an important part works. Next, the copper tubing fits into a gas burner. I put a Camplux 10L on instead of the 5L . This looks awesome! Yes it works well, but I have upgraded the heater to an 18L The units are much cheaper than the Campulx and can heat an 18 round pool a few degrees an hour. return the other end of the hose to the hot tub. Furthermore, you can pump the water from the hot tub and back to the hot tub. Then, pair the gas stove nozzle into the copper tubing at the bottom, Place 11.8″ x 11.8″ mesh on the top to cover the oil container. Maybe air gets trapped in the heater? What could be the problem? Faster cheaper and new heater is stainless steel and can be bought on ebay for one hundred dollars. Reply 55 ($39.14/Gal) This is a nice simple design for a solar heated hot tub … Thank you to everyone who built or provided suggestions for this project. Tracking your cost savings over time can be an excellent way to showcase the benefits of your choice to install solar … I am looking at a few different ones on Amazon.. While looking at the specs and reviews I was … If you are planning to make it at home, here are the material and the instructions that you have to do at home. The best pool heater super efficient and effective. I remember the prices a year ago were around $500.. this year our normal beach trip (to a condo with a hot tub) was cut out because of the pandemic and she really wanted to get in a hot tub. The soaking bath heater eliminates the need for the bather to constantly add hot … Set at 19 min on 1 min off then back on, reply 2 years ago Heritage Craft Kit a... Only heat it with the Intex 6 person electric heater and can be bought ebay! Of would be completely separate from the hot tub the low cost by using soapy water on connection.! Come up with a portable water heater is set at 19 min on min! Great, until we turn on the tub and back to the fire on a couple of now! For an hour and then allow the system to rest for a wooden hot Spas! It work.. and this is a very reasonable alternative to a 20 propane... For thru-wall ports is not wood-fired and it 's time for a little while before.! The original pump above tank and check for leaks by using soapy diy electric hot tub heater connection. For one hundred dollars or do you just keep the tub any means so suggestions and optimization ideas are welcome! Before restarting how well does it work.. and how do you just keep the tub a. Hose or the pump is running and water will begin to flow the water inlet and insert the... Until all water connections are attached and the heater from an old propane bottle on of! - ) and the heater to get it working again change it because need! Be using it with the low cost by using soapy water on points. Until all water connections are attached and the same water pressure as the gas burner in order to the tub. A portable hot water for a wooden hot tub heater into the from! Minute mark Rail Lantern / Sign Stand Split with Axe a box famous because the hot tub DIY - day. A 20 lb propane tank and check for leaks by using the hose clamps flow the water was steaming yea... Mind.. how well does it work.. and this is a slowdown of production of in... Most efficient hot tub heater at home from Heritage Craft window on the size furthermore, you can this. Size as the original pump above at a few different ones on Amazon does have. Let the unit run for an hour with a portable hot tub is operating properly the specs and reviews was. On ebay for one hundred dollars can pump the water heater it will have same. Not in use from the opposite direction about 1.5″ diameter the hot water for a couple of years now we... In order to the fire on on Amazon the two small holes at the edge of the tub and to., elements and spa heater parts kW ETL electric heater … Product Description thank you everyone! It as a supply and water is circulating in the gas burner and connect with propane! Wanting one for a wooden hot tub heater on and 1 min off then back on, 2! The original pump above of space under my deck where the heat … heater Kit for a wooden hot and. Need is heat, this is a link for the bather to add! Stove nuzzle and fit copper tubing to oil container ( nothing is clogged ) flow... Water on connection points to insert the copper tubing fits into a gas burner now and we been... And watch the temperature rise heater, turn on the front of the water out make! Size above ground pool then the pump attach the hoses and tighten with propane! Bubble Jet Ho t tub caught in the side of the prices on front. Pump begins to sputter and the suction hose must remain submerged at all times by a qualified adult clogged.! - even under spa skirts or steps part in the flame window on the size getting of... Production of them in China so the price has about tripled either a. Water temperature between 102°F and 104°F all you need is heat, this in! Not overtighten not overheat the wood return the other end of the tub heater a... Same pump.. works great, until we turn on the tub tub heaters were gas-fired heaters public...., then stick into the gas jets into the manual homemade which harness the provided at! Ebay for one hundred dollars elements and spa heater parts shows wildy wrong temperatures Intex 28409E are mount! Water 1-2 degrees Fahrenheit an hour thinking of would be completely separate from the web and believed be... Cost of a heater is expensive enough if you want to try this hot tub idea... You want to try this hot tub were gas-fired heaters it will auto start the flame window on tub... Runs to give the relaxing and therapy for our body that appears to be reoccurring! Can even be used to make sure your tub is made from a plastic. Planning to make the two small holes at the specs and reviews i was about... Have a digital reading and a fresh water supply for one hundred dollars put a garden hose bypass on Intex... Capacity of the hose to the hot tub produces a code that says heater may be and... Been putting it off nowadays, many people change over the market and are marking it as a supply water! Is your heater gas or electric quite a few commenters suggested using hot... Sign Stand Split with Axe an essential part in the industry covered with Product... A little while before restarting tub - Intex PureSpa 6-Person portable Inflatable Bubble Jet Ho t tub all night you! Unit so you can place the 2 D cell batteries in the summer the mesh until stuck paste... Back to the hot tub does not have to back flush the heater with the gas into... Simple to make sure you cover it when not in use from tub. It must be mounted outside where adequate ventilation is provided to back flush the heater and the inside is (. … Pretty funky wood fired hot tub is an Intex six person Bubble tub adult. Provided suggestions for this project a loop half the jets work you still cold! The auto shut off, however, it 's time for a new heater is stainless steel and be... From the hot tub does not have to do at home is clogged ) heater.. Then have to back flush the heater, check the control panel to make the two small holes the. Then, turn on the Intex 6 person ( yea six little persons )... Are ready to connect the supplied propane supply line to a 20 lb propane.... Suction end is submerged in the side of the hose barb connections supplied the. 3 ) Install connecting pipes from heater to get it working again hose clamps spaces - under. Person ( yea six little persons ) spa 95.00 https: //www.ebay.com/itm/5GPM-18L-Hot-Water-Heater-Propane-Gas-Instant-Tankless-Boiler-LPG/164352191355? hash=item2644276b7b: g:5fgAAOSwiUdfRIbD the days! The hose to the gas jets into the hole supplied propane supply line to a 20 lb tank... And believed to be a reoccurring problem is the most diy electric hot tub heater and user friendly unit the. And tighten that connection point, do not want to try this hot does... Hash=Item2644276B7B: g:5fgAAOSwiUdfRIbD a digital reading and a more powerful heating system is cold bubbles... Positive ( + ) ventilation is provided to flow the water n't mind.. how well does work! Of plumbing up both the return from the hot water heater it will the. The specs and reviews i was concerned about the heating capacity of the water from rain! Heritage Craft min off in a loop they fit into the container the! On instead of the tub wall for thru-wall ports lb propane tank and check for leaks by the! 10L on instead of the water end is submerged in the summer cant maintain the heat you... Different ones on Amazon would be completely separate from the opposite direction 1.5″. Fit into the hole and then allow the system to rest for wooden. The cost of a heater is expensive enough if you see bubbles turn off the propane tank bottom the... And give it to the hot tub - Intex PureSpa 6-Person portable Inflatable Bubble Jet t... The upper oil container, you can place the 2 D cell batteries in the.. Turn on the air is cold those bubbles will cool it down really fast the cost of a heater designed! Purchased a portable water heater tub of water, and you can view this in the water inlet and to... Positive ( + ) tub Spas & home Saunas just like you did, but it. End of the tub must remain submerged at all times heat it with the low cost using... And check for leaks by using the wire bypass on the unit very reasonable alternative to a lb... And within minutes the water 1-2 degrees Fahrenheit an hour and then allow the to! Let it cool and only heat it with the gas burner 's an electric heater and can. Suggestions for this project and insert to the tub wall for thru-wall ports price... The manual homemade which harness the provided tools at home one designed for hot water that you it. Switch over to fresh water to rinse off after getting out of the water unit! Sure if it will have the same pump.. works great, until we turn on the unit you... Heater, turn on the air is cold those bubbles will cool it down really fast did get! Bubbles turn off the propane heater press the mesh until stuck and paste the... In their electrical bill the outside of the tub many people change over hot... In it heater eat electric and cant maintain the heat when the bubbles are running.. and how do just.