MasterTemp Heater 125,000 BTU - NG w/ Cord - 461059

$1,147.99

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Model # 461059

By Pentair Pool Products

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Model # 461059

Product Description

MASTERTEMP® 125 HIGH PERFORMANCE HEATER 

Introducing! The High-Efficiency, High Technology Heater for Bodies of Water up to 15,000 gallons  

  

The remarkably affordable new MasterTemp 125 heater gives you the energy savings and advanced operating features that were only available from much larger heaters. With its revolutionary pre-mixed gas combustion technology, the MasterTemp 125 heater offers 82% thermal efficiency - the highest of any heater in its category. Its 1-1/2" plumbing is ideal for smaller applications, including aboveground pools, spas and inground pools up to 15,000 gallons. Featuring the first ever rotating, digital display offered in its class, the MasterTemp 125 heater provides valuable information conveniently and at the touch of a button. Plus, its lightweight, compact design makes the MasterTemp 125 heater easier to install than any other heater in its class - reducing labor costs which saves you money. 

MasterTemp 125 heater features include:

  • 82% energy efficiency is highest in its class.
  • 1-1/2” plumbing - ideal for smaller bodies of water up to 15,000 gallons.
  • High-performance, affordable heating with premium features.
  • Pre-mixed combustion technology for ultra-fast heat-up.
  • Easy-to-use, digitial display makes programming and monitoring a cinch.
  • 125,000 BTU rating.
  • Available in natural gas or propane gas.
  • 120/240 V electrical.
  • Lightweight - easy to handle and ship.
  • Certified for low NOx emissions.
  • Certified for Direct Air Intake with PVC Pipe.
  • Certified for outdoor and indoor vented installations.

SPECIFICATIONS

These installations instructions are designed for use by qualified personnel only, trained especially for installation of this type of heating equipment and related components. Some states require installation and repair by licensed personnel. If this applies in your state, be sure your contractor bears the appropriate license. 

Product Specifications

BTU:
125,000 BTU
Gas:
Natural
Elevation:
0-9,000 ft.
Heat Exchanger:
Copper
Special Feature:
Standard Emission
Ignition:
Electronic
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?     Asked on 10/8/2018 by Rafael Garcia

What kind of a warranty does this product have
 Reply

A  Answered on 10/9/2018 by InyoPools Product Specialist Hector F.

Please click here to view Pentair's warranty card which includes the parameters and details of their heater warranty. 
 Reply


?     Asked on 6/26/2018 by Tom B

I'm just looking to heat my spa - circular approximately 8 feet across. Is there benefit to spending the $$ to get the 400,000 BTU top line model? Will the heating time to 102 degrees be substantially slower? Thanks.
 Reply

A  Answered on 6/26/2018 by InyoPools Product Specialist Lennox H.

Hi, Tom B. The 400,000 model will heat the spa faster than this 125,000 model. Based on your size spa a 400K model will be overkill. 
 Reply


?     Asked on 6/10/2018 by Amy

I have ordered a union kit to replace the one that is currently there. I can't seem to find replacement pvc fittings that are long enough to go into the Union kit. The fittings and hoses come out when i start up the pump. Any ideas where to purchase connections that will work with the Union Kit?
 Reply

A  Answered on 6/20/2018 by InyoPools Product Specialist Kevin G.

Hello, the 474974 would be the union kit for Mastertemp.
 Reply


?     Asked on 6/9/2018 by Ben

I have a 24 ft AGP. The heating element /igniter has to be replaced about every other week. Why is that? *I have owned the heater for just over a year.
 Reply

A  Answered on 6/12/2018 by InyoPools Product Specialist Lennox H.

Hi, Ben. I'm not sure why that is. The cause of the failures will need to be determined to resolve this issue. Start out by testing the Ignition Control Module - 42001-0052S, instructions can be found on page Page 41 - of the MasterTemp High Performance Heater Owners Manual
 Reply


?     Asked on 5/22/2018 by Bob From Connecticut

I have a 24' x 54" AGP, I see that the 125K unit will work. How many degrees F per hour will it heat and what is the cost or CFPM of gas that will be required to heat for 1 hour? Is the NG unit 110 volt? How many amps?where does it go, on the return?
 Reply

A  Answered on 5/26/2018 by InyoPools Product Specialist Lennox H.

Hi, Bob. You can get about 3/4° temperature increase using 1.25 Therm per hour. This unit requires a 120 / 240 Volts AC, single phase 15 Amps electrical connection. 
 Reply


?     Asked on 4/24/2018 by Karl

Work satisfactory at Elev. of 3300 Feet?
 Reply

A  Answered on 4/25/2018 by InyoPools Product Specialist Kevin G.

Hello, the MasterTemp can be applied to installations up to 9,000 feet. 
 Reply


?     Asked on 3/26/2018 by mayapi

What Is the gaz consumption ? Is it compatible with a 13kg butane gaz bottle of supermarket ?
 Reply

A  Answered on 3/27/2018 by InyoPools Product Specialist Lennox H.

Hi, Mayapi. This unit will use 1.25 Therm per hour. This unit will not run off Butane Gas.
 Reply


?     Asked on 3/26/2018 by mayapi

What is the max/full power consumption in Watts please?
 Reply

A  Answered on 3/26/2018 by InyoPools Product Specialist Joe S.

The Wattage: 240. Amperage draw: 2
 Reply


?     Asked on 8/19/2017 by Brian V.

I have a minimax 100 for my pool. Looks like it finally rusted through after 12 years. Do you still make that model? I've looked and can't find it. If not what would you recommend that would be compatible to the present one I have. Thanks for your time.
 Reply

A  Answered on 8/22/2017 by InyoPools Product Specialist Lennox H.

Hi, Brian V. The MiniMax Series Heaters are no longer being manufactured. This Pentair MasterTemp 125K Heater can be used as a replacement. 
 Reply


?     Asked on 7/9/2017 by Don Markum

I have a 4,000 gallon inground & indoor pool. What size heater will I need?
 Reply

A  Answered on 7/10/2017 by InyoPools Product Specialist Lennox H.

Hi, Don. Heaters are size based on the pool's surface area. However, this 125K BTU is adequate to heat an indoor 4K gallon pool. 
 Reply


?     Asked on 6/10/2017 by

i have a 14x30 sports pool 3.5 feet deep at ends and 5 in center will this 125k btu heater be good?
 Reply

A  Answered on 8/5/2017 by InyoPools Product Specialist Alex V.

Hello, Yes, this heater would be a good size for your pool. 
 Reply


?     Asked on 5/8/2017 by mark

will this work for my 18x33 above ground pool .also does it come with water couplings to attach to unit.
 Reply

A  Answered on 5/8/2017 by InyoPools Product Specialist Scott W.

If you are only heating an above ground pool I recommend a heat pump over a heater. What state do you live in so I can recommend the appropriate size heat pump for your pool?
 Reply


?     Asked on 4/30/2017 by Kellie

Do you have a list of qualified installers available by chance?
 Reply

A  Answered on 4/30/2017 by InyoPools Product Specialist Stacey M.

Hello, I apologize, but we don't have a list of qualified installers for Pentair products. If you would like to contact Pentair 800.831.7133 and contact tech support for a list of who they have in your area that they recommend to install heaters.
 Reply


?     Asked on 4/30/2017 by Kellie

I have an above ground 12x24 pool (52 inches deep) with sand filter and salt water converter. Would this heater work and can it be used with the flexible water piping the pool came with. Also is the install portion just for the gas line or does it need to be for the water piping also? Thank you!
 Reply

A  Answered on 4/30/2017 by InyoPools Product Specialist Lennox H.

Hi, Kellie. This size heater is sufficient for your size pool. I would recommend using flexible PVC or standard PVC pipes for the water connection installation. The gas line and water connection have to be done by a professional technician.
 Reply


?     Asked on 4/19/2017 by

Will this heater work with a ComPool p3400 pool/spa control system? I want to control the spa temp from indoors on the control panel.
 Reply

A  Answered on 4/19/2017 by InyoPools Product Specialist Scott W.

Is the P3400 a automation system or a salt system, I am not seeing any information on that system and CompuPool is no more?
 Reply


?     Asked on 2/21/2017 by

dose pantair mastertemp 125 comes with remote control ?
 Reply

A  Answered on 2/21/2017 by InyoPools Product Specialist Scott W.

If you wanted to control it remotely you would need an automation system with a remote to do so.
 Reply


?     Asked on 2/16/2017 by

Do any heaters and filters have medal bodies vs fiberglass?
 Reply

A  Answered on 2/16/2017 by InyoPools Product Specialist Scott W.

The outside of the heaters are plastic and the filters are either plastic or fiberglass depending on what kind of filter you get.
 Reply


?     Asked on 2/7/2017 by

i have a 12 x 27 pool that is 3.6 to 5.4 . will a 125,000 btu be aufficient
 Reply

A  Answered on 2/8/2017 by InyoPools Product Specialist Lennox H.

Hi, Your pool is 324 square feet so this unit will be sufficient for your size pool.
 Reply


?     Asked on 10/25/2016 by laura

We live in Ohio and need to winterize our new Pentair Mastertemp 125 heater. Is there anything we need to drain or specifically do? Does it need to be covered.
 Reply

A  Answered on 10/25/2016 by InyoPools Product Specialist Adam Y.

Hey Laura, please refer to page 46. in your owners manual. MASTERTEMP®125For outdoor heaters in freezing climates, shut the heater down and drain it for winter as follows: 1. Turn off electrical supply to the heater and pump. 2. Close main gas control valve and manual gas valve (located outside the heater). Turn switch on heater gas valve to OFF. 3. Disconnect the INLETand OUTLETunionsfromthe systemplumbing, and drain the heat exchanger andmanifold adapter completely. If the heater is below pool water level, be sure to close isolation valvesto prevent draining the pool (isolation valves are not required and should not be used on heatersinstalled above pool water level except when needed for winterizing valves). Assist the draining by blowing out the heat exchanger through the pressure switch fitting with low pressure compressed air (lessthan 5 PSI or 35 kPa).
 Reply


?     Asked on 9/28/2016 by Gene Jester

Will this heater replace the Pentair Mini Max?
 Reply

A  Answered on 9/29/2016 by InyoPools Product Specialist Scott W.

Yes, that would be a great replacement for the Mini Max. Just make sure you have around the same BTU's with the Master Temp as you do your Mini Max.
 Reply


?     Asked on 9/3/2016 by Toni

Looking to buy a natural gas pool heater for my above ground 12x24 oval pool. What brand and BTU would be good for this size? We would like to have the temp of pool be around 80+ degrees. And do any of the heaters ever go on sale in fall or spring? Thx
 Reply

A  Answered on 9/16/2016 by InyoPools Product Specialist Megan C.

Hello,Toni. The RayPak 156A Digital Control - 150K BTUs - Natural Gas, ELE (5000-9999 FT) - 014785 is a good fit for a pool your size. The heaters do not have a set schedule for sales. I recommend entering your email address on our site for promotional email and an instant reward code when entered. You may also find the Owner's Manual and our How To Select a Gas Heater For Your Pool or Spa helpful.
 Reply


?     Asked on 9/2/2016 by David Mcguire

what size is the gas line?
 Reply

A  Answered on 9/14/2016 by InyoPools Product Specialist Lennox H.

Hi David. The gas line connection is 3/4 inch. To determine what size pipe you will need you can review the chart on page 14 & 15 of the MasterTemp High Performance Heater Owners Manual.
 Reply


?     Asked on 9/2/2016 by David

What size gas line is this unit?
 Reply

A  Answered on 9/9/2016 by InyoPools Product Specialist Alan M.

The gas line on this unit is 1". This and additional information on gas lines of other units are available in the Mastertemp Owners Manual.
 Reply


?     Asked on 6/30/2016 by Bob

I have a pool size of 18' x 36' x4'. Would the 125K heater be sufficient enough to heat this pool? Or the next size larger heater. Please explain why or why not. Thanks
 Reply

A  Answered on 7/7/2016 by InyoPools Product Specialist Lennox H.

Hi Bob, A 125K BTU Heater is not sufficient for an 18' x 36' pool. This size heater will have to work overtime to get the pool to your desired temperature. This unit will raise your pool temperature less than 1 degree per hour. Based on the surface area of your pool you will need a 200K BTU unit to raise you pool temperature by 1 degree per hour.
 Reply


?     Asked on 6/7/2016 by John McGhee

What is the shipping cost for your Pentair Master temp temp 125 240v50Hz unit to the UK. The postcode is CM22 7SH.
 Reply

A  Answered on 6/9/2016 by InyoPools Product Specialist Joe S.

We do not ship freight items outside the 48 states. You would need to contact a freight forwarder and arrange the item sent to them.
 Reply


?     Asked on 6/1/2016 by Louis Lodato

What does the code E06 mean?
 Reply

A  Answered on 6/8/2016 by InyoPools Product Specialist Lennox H.

Hi Louis, According to the MasterTemp Owner's Manual, error code E06 means that there could be an issue with the fuel supply,  fuel supply, Thermal Regulator, or the orifices.
 Reply


?     Asked on 7/30/2015 by

where can I find the indoor vent kit for this model
 Reply

A  Answered on 7/31/2015 by InyoPools Product Specialist Joe S.

Hello you will need part number 474845  DIRECT AIR INTAKE DUCT WITH 3-INCH PVC PIPE KIT there is a lead time of 7-10 business days
 Reply


?     Asked on 7/8/2015 by Chris

Is the heat exchange copper or cupro-nickel?
 Reply

A  Answered on 7/8/2015 by InyoPools Product Specialist Hector F.

This model is has the copper heat exchanger. The HD models have the cupro-nickel heat exchanger.
 Reply


?     Asked on 6/17/2015 by Dan K

I currently have a 24' by 48 in round above ground and will replace it with a 24' by 54 in round above ground. That will make it about 15,268 gal. What size btu do I need?
 Reply

A  Answered on 6/17/2015 by InyoPools Product Specialist Wes B.

Hi Dan, A sufficient heater size for your pool will be between 200-300 BTU in thousands. Now the larger you go the better. Going bigger on a pool heater increases your longevity of the heater and cuts down on your expenses to use it. It will heat faster in a shorter period as well as not having to work so hard to heat it.
 Reply


?     Asked on 6/5/2015 by Vera

I have a 24' round pool ... would this be sufficient to raise the temperature 5-10 degrees and would I need to purchase anything else to get this pool ready???
 Reply

A  Answered on 6/7/2015 by InyoPools Product Specialist Alex V.

Vera, This would be sufficient for a 24' round pool. I would recommend using a solar blanket with the heater. Other than a gas line present at your home and material to plumb the heater in, you do not need anything else to install the heater.
 Reply


?     Asked on 6/1/2015 by JOSEPH HUGGLER

I NEED A THERMOSTAT FOR A PENTAIR ABOVE GROUND POOL HEATER DESCRIBED AS: MINIMAX (TM) CH HIGH PERFORMANCE MILLIVOLT HEATER. THERE IS NO ELECTRICITY FEED TO THIS POOL HEATER. PLEASE RESPOND TO PROVIDE A SOURCE FOR THIS THERMOSTAT. THE3 HEATER IS APPRPOXIMATELY 10 YEARS OLD.. THANKS
 Reply

A  Answered on 6/1/2015 by InyoPools Product Specialist Patrick P.

Hi Joseph, for the Pentair Minimax CH Heater you would require the Pentair Minimax CH Thermostat.
 Reply


?     Asked on 5/31/2015 by Mike

I have 15' x 30' x 52". What size heater would I need for this size pool ?
 Reply

A  Answered on 5/31/2015 by InyoPools Product Specialist Alex V.

Mike, The 125k btu Pentair Mastertemp would be a good size for your pool.
 Reply


?     Asked on 5/28/2015 by Terry Concannon

My pool is 16 x 32' &salt chlorinated. I am considering a heater that can raise temp by 10 degrees. Will this heater work?
 Reply

A  Answered on 5/28/2015 by InyoPools Product Specialist Lennox H.

Terry, Base on your pool surface area a 125K heater will not be the correct size. You'll need at least the MasterTemp  200,000 BTU, NG w/ Electric Ignition, Low NOx Heater.
 Reply


?     Asked on 3/30/2015 by john

Could you please explain what do you define as a qualified installer
 Reply

A  Answered on 3/30/2015 by InyoPools Product Specialist Wes B.

Hi John, Manufactures consider a licensed and ensured pool professional that you pay a qualified installer. Also for heaters and heat pumps a HVAC technician would also be considered a qualified installer, The local homeowner or the jack of all trades who does the repairs on the side would not be considered a qualified installer.
 Reply


?     Asked on 3/18/2015 by Judy

what size of gas heater would I need for 27 round above ground pool.
 Reply

A  Answered on 3/19/2015 by InyoPools Product Specialist Robert M.

Hello Judy - The correct size for a 27' pool would be a 250,000 BTU model. Pentair model 460732 is the 250K BTU NG heater.
 Reply


?     Asked on 8/29/2014 by Guest

What is the warranty for this heater?
 Reply

A  Answered on 8/29/2014 by InyoPools Product Specialist Patrick P.

The heater ( 461059 ) carries a 2 year warranty as long as the unit is installed by a Qualified Installer and registered within 60 days. Otherwise the warranty is 60 days.
 Reply


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