Will a gas heater operate at the low speed of a dual speed motor?
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Probably not - Most gas heater will shut off at low GPM levels (20-40) to keep the heater cores from overheating - 20 for 200 BTUs, 40 for 400 BTUs. Depending on your pool system you might get these GPM levels at the low speed but generally these heaters must be run at the motor's high speed.
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I have a 18' Round 54" deep pool. what pool heater would I need
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Hello Greg - The 200k BTU MasterTemp would be sufficient for your pool size.
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Is the ventilation for this heater on the top or sides or both? Our pool components are housed behind a cabana and the roof results in rainwater pouring down….I'd prefer not have install a gutter (metal roof and expense) but I also don't want the water surging down on top of the heater and rusting it out. That is why our existing heater is not functioning. If the heater is bought on-line, is there any kind of warranty after our pool person installs it?
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Hi Sandra, This Pentair Mastertemp ventilation system runs up from the side with the exhaust fan traveling upward. Pentair makes a vent cover to protect it from the elements. The vent cover part number is (42002-0005s).
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My pool is 16 x 37 with average depth of 5 feet. Do I need a 400k unit?
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Hi Johnny, normally we suggest a 1-1/2 degree temperature raise per hour and with your size pool this would be a 250,000 BTU Pool Heater. You could go with the 400,000 BTU heater if you want to heat your pool faster as the 400,000 BTU unit will give you a 2-1/4 degree temperature raiser per hour. The other thing you will want to consider is the size gas line you have to the heater as the 400,000 BTU unit requires a larger gas line than the 250,000. You can view a Pool Heater Gas Line Size Chart here (refer to 266 for the 250K BTU and 406 for the 400K BTU).
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I have a 36,000 gal pool. What is the min BTU and Max BTU I need to have to heat this pool comfortably.
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For a 36,000 gallon pool I would suggest between a 300,000 - 400,000 BTU heater. If you are replacing a heater you would want to make sure your current gas line can handle the BTU size of the heater you select.
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I have a 40,000 gallon in ground pool. We are looking at a new pump and heater. Only have 1.5 inch plumbing, but can be replaced. 20ft of heading between intake and pump. Any recommendations on an ideal pump size (hp), plumbing diamter, and heater size (btu) for my pool? Thanks
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We would suggest a pump which can turn your pool over in an 8 hour period which would mean a pump which can output 85 Gallons Per Minute (GPM). One of my favorite pumps is the Jacuzzi Magnum and you would need the 1-1/2 HP Jacuzzi Magnum Pump. I would strongly suggest re-plumbing as much as you can with 2" pipe and make sure that you have at least 12 inches of straight pipe going into the inlet of the pipe, no 90's within 12 inches of the inlet. If you are replacing a heater you will want to double check the size of your current gas line as this determines how large of a heater you can use. If this is a new heater installation I would suggest a 400,000 BTU heater.
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I have a MasterTemp 400 (natural gas) that was installed 21/2 years ago .It seems to have quit working.All of the electronics are working fine but it just won't come on and start heating.
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Hi Ray, You can have a service technician come out to inspect the unit or use the MasterTemp Installation & User Guide to self troubleshoot your unit.
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What is the warranty from pentair for the mastertemp 400000 btu #460736? Does the warranty begin on installation date after registration?
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The MasterTemp pool heater is sold with a limited factory warranty. Specific details are described on the warrantyregistration card which is included with the product. Return the warranty registration card after filling in the serialnumber from the rating plate inside the heate
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On line you do not show a Pentair Mastertemp 400k btu with cupro nickel. If you have it what is the cost
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Hi Ralph, The MasterTemp Heater-460805 is the equivalent with the cupro nickel heat exchanger.
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master temp 400,000 what size gas line on the heater
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Leeroy, The size of the gas line will depend on the distance from the meter. Page 20 of the manual illustrates this: http://images.inyopools.com/cloud/documents/pentair-heater-mastertemp.pdf
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I am installing a used Pentair Master Temp 400 Pool heater and i need to know the part numbers for the items i need to install the heater inlet and outlet pvc water connections. I know they originally come with the heater, but i do not have them.
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Hi John, The Half Union 2" Slip (42001-0402) are the unions used with the MasterTemp Heaters.
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I have a 37'x17' 5 1/2' deep pool with a 9' diameter spa connected. What size heater do I need? I currently have a Haywood 400k heater that just went out. Do I need a special kind of heater?
Thanks
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If you currently have a heater that is natural gas, that is what I'd go with. As far as the size, I'd recommend sticking with the 400,000 BTU unit for the size of pool you have. The Master Temp would be a good replacement for your current heater. Another good heater to look at would be the RayPak, part number 009219. They also have reinforced heat exchangers on specific models for people with saltwater pools, it makes it less corrosive. The heat exchanger is usually what goes first on heaters due to corrosion. The part number for the reinforced heat exchanger is 014941.
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I have a 12,300 gallon pool in San Antonio, TX. What size heater do I need for water temp between 80-85 degrees during our winter months?
Thank you.
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The 400,000 BTU model is definitely going to be the most efficient due to the fact that you will not have to run it as long to get to your desired temperature. You would also be good with the 300,000 BTU model as well, 460734, you would just have to run it longer to get to your desired temperature.
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I am considering purchasing a pool heater model number 460736 Mastertemp . I am wanting to know about any warranty the product comes with and the details. I will be installing in a home in Texas also would like to know how warranty issues will be dealt with if my client has a problem. Any warranty documentation and all details you can send me would be greatly appreciated.
Jennifer Williams
432-349-4984
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That is going to have a 2 year manufacturer's warranty. Any issues you can either give us a call if any issues occur or give Pentair a call for a representative in your area.
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I have a pentair master temp 400 natural gas pool heater and I need to replace the lower sensor on the left side and it is copper colored .Can you supply ?
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Good morning Ray, I would need to know what kind of sensor or a part#. You can contact Pentair at 1-800-831-7133 and they can assist you in finding the correct part number.
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Que cantidad. De gas y e le electricidad WK/H consume por hora este calentador.
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Here is some information on the cost of running a pool heater.
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I know I need a 400,000 BTU heater for a large inground pool near Chicago. My pool contractor years ago put in a Pentair heater w/ all other Pentair related pool equipment components (filter tank, salt exchanger, etc.,). I'm in need of a new heater and considering Raypack or possibly staying with Pentair. Is one brand better than the other ? and/or is it necessary or best I stay with Pentair since all my other items are Pentair ? A licensed-brand contractor would install the new heater, not me
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Hi. One brand is not better than the other, you can stick with Pentair if you have the same unit so that a major install is not required. These unit are required to be professionally installed according to the manufacturer.
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We have a 15 x 30 pool with a 4 person spa attached. Is this a good heater for this kind of application? Thanks!!
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Hi, Jim. A 400,000 BTU heater will be sufficient to heat a 15'x30' pool and a spa.
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plumbing inspector wants a pressure relief installed on heater, I don't see a port for it . what do you recommend ?
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Hi, Gerald. On page 18 of the Pentair Mastertemp Owners Manual provides the details of installing a pressure relief valve on this unit.
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Does this model work with propane? What voltage electricity does it require?
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Can you ship Pentair master temp high performance NG heater Pentair #460805 to California & what is the total cost delivered to my residence? It would be Credit card charge.
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Hello Dan, We can ship to California. The shipping would be free.
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I am replacing a Hayward 300,000 btu heater and the system is piped with 1-1/2" pipe. It is not possible to re-pipe for 2", will this heater work with 1-1/2" plumbing?
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Hi, Dave. You can re-plumb with 2" pvc or use 1-1/2" pvc. Using 1-1/2" you will have to use a reducer at the heater.
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Is this Master temp heater a compatible replacement for Master temp 460775?
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is this heater compatible with controls to operate the heater through your internet connection? does Pentair make such controls?
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Hi, Tom. Using one of these Pentair Pool & Spa Automation Systems
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I need to replace a Pentair MinMax NT. Currently using a Goldline system controller. Are these two compatible?
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I cant adjust temp on control panel...the heater is on but up and down temp control stopped working
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Check Fireman’s Switch circuit connections (time clock, wiring, external controller relay).
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i have a 3 yr old master temp 400
water is coming out of air blower is my heater done for ?
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Hello, We recommend contacting the manufacturer on that question, you can reach them at 1-800-831-7133.
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I currently have a Hayward heater and Hayward control panel. Will the Pentair heater work with my existing Hayward control panel?
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Hi. It can control the heater, however, it will only be able to turn the heater off/on. You will not be able to fully control this MasterTemp unit.
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Can you clarify what it means to not control the master temp unit? What is the master temp unit?
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The Master Temp is the Pentair manufacturers Natural Gas and Propane heaters shown here http://www.inyopools.com/productlisting/heaters_mastertemp.aspx The control they are mentioning is an automation system either controlled via WiFi or RF Frequency, they power the pumps, lights, heaters, etc. It is best to use the same manufacturers with automation systems, certain pumps and lights require the same manufacturer. It depends on which Hayward automated system one has, if you can only use on/off or if you will be able to change the temperature settings too.
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We are replacing a 400K BTU heater with a new Haward, or Pentair 400k btu. How do I check to see if the current meter can handle this unit? It worked fine with the old on, but I've heard the new units need more gas. The old line was 3/4" off the meter 1" underground and 3/4" intothe heater.
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Hi, Raul. You will have to reach out to the gas company so that they can check the meter. New units do not use more gas than older units. I 1" gas line will be sufficient if the unit is with 25' of the meter. See the Gas Connection info on page 20 of the Pentair Mastertemp Heater Owners Manual.
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how many BTU for 10x28 pool
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The depth and shape of the pool will be needed to determine the total gallons or surface area of the pool. We will need the depth on the deep end and shallow end. Hypothetically, if the pool is 10' x 28' x 5.0' (Average Depth) x 7.5 (Rectangle) = 10,500 total gallons. The minimum BTU size for a heater is 88,000 BTUs. If you select a heater with the minimum size, it would take approximately 1.5 hours to raise the temperature in the water by 1-degree. This is with the use of a solid solar cover or Natural Chemistry Cover Free 80% of heat loss is due to evaporation. Please see How Long Does It Take to Heat a Pool? http://www.inyopools.com/blog/long-take-heat-pool/
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the heater would be placed inside, what kind of ventilation do I need?
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Hi Luke, Could you let us know if you will be venting vertical through the roof or horizontally through a side wall?
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it will be going through a wall the heater will only be a foot or 2 away from the exterior wall
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Hi Luke Page 10-15 of this Pentair Master Temp Owners Manual go into greater detail on the various ways to vent the heater and the needed parts. Most likely you will use this 4" Pentair MasterTemp Vent Adapter and then source the 4-inch vent pipe locally.
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Are these commercial grade units?
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Hi could you tell me the difference between the SKU EC-462028 and the 460736? Do you have either in stock to ship to Texas?
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Lamont, Both of those part numbers cross-references to the same heater. It is in stock and we can ship to Texas.
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Is this item still in stock to ship to Texas? If so, how quickly will it take to receive if ordered today?
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Yes this heater is in stock to ship Texas currently delivery is taking around 2 weeks for you to receive your order on this item after purchase.
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I live in Texas. During the freeze the water pipes into and out of my Pentair Mastertemp 400 heater broke. My pool company said this was the manifold and they cannot get the part until August. My model number is 469736 and my S/N is 1117360190040M. Can this process be expedited? I realize the freeze created a demand. Can you help.
Yes that is correct the Manifold is the part you will require and we too are out stock on this item until around August 2021. We do have the complete heater in stock if you are needing something quicker, and that would be the heater listed on this page here.
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You Can convert this unit to LP?
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Yes you would require this Pentair Mastertemp 400,000 BTU NG to LP Conversion Kit
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my unit will come on and the green light will indicate pool is heating, however, it will stop and the red light comes on stating 'service unit'. can this just be a reset issue?
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Hello Deborah. Please verify the manufacturer and model number of your heater/heat pump so a more accurate determination can be made.
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