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Home Pool Pool & Spa Heaters Raypak Pool & Spa Heaters Raypak 156A Above Ground Pool and Spa Heater | Digital Controls Electronic Ignition | Natural Gas 150K BTU | P-M156A-EN-C 014802 P-R156A-EN-C 014784
NOTICE: The pool & spa industry continues to face industry-wide shortages on many products that most vendors expect to last late into 2022. We're allowing items to be purchased so that customers who choose to wait will have their order shipped when product is available. Most vendors are not providing any ETA on when items will be available. WE WILL EMAIL YOU RIGHT AWAY IF YOUR ITEM IS BACKORDERED. 

Raypak 156A Above Ground Pool and Spa Heater | Digital Controls Electronic Ignition | Natural Gas 150K BTU | P-M156A-EN-C 014802 P-R156A-EN-C 014784

Raypak 156A Above Ground Pool and Spa Heater | Digital Controls Electronic Ignition | Natural Gas 150K BTU | P-M156A-EN-C 014802 P-R156A-EN-C 014784 Raypak 156A Above Ground Pool and Spa Heater | Digital Controls Electronic Ignition | Natural Gas 150K BTU | P-M156A-EN-C 014802 P-R156A-EN-C 014784 Raypak 156A Above Ground Pool and Spa Heater | Digital Controls Electronic Ignition | Natural Gas 150K BTU | P-M156A-EN-C 014802 P-R156A-EN-C 014784 Raypak 156A Above Ground Pool and Spa Heater | Digital Controls Electronic Ignition | Natural Gas 150K BTU | P-M156A-EN-C 014802 P-R156A-EN-C 014784
Sale $1,470.05

Parts AvailableParts Available
Platinum Preferred Manufacturer
  • Raypak Indoor Stack Top 156A | 6" Vent | 014358
    Raypak Rheem 156A
    Stack Top 6" Venting 014358

Raypak Above Ground Pool and Spa Heater - 156A
The Raypak 156A is the perfect choice for larger above-ground pools, spas and inground pools. The 156 has up to 50% more BTU's than the competitors' above-ground pool heaters. More BTU's means quicker heat-up. Extend your swim season, open your pool earlier and close it later. Your pool is always ready when you have a Raypak on duty.
Model Number Full BTU Input Indoor Stack Dia.
PR-R156A 150,000 6"
PolyTuf Textured Powder Coating
The Raypak gas heater has a polyester-coated, non-corrosive cabinet that is more durable than solvent-borne and waterborne-coated metal cabinets. Every piece of sheet metal goes through a 7-stage wash system, making certain the powder paint has a perfect bond. Underneath the tough, yet beautiful finish you will find galvanized metal that offers superior rust prevention and years of durable service.
Wind-Resistant Design
No need for fans to combat drafting problems under normal conditions. This heater is designed to draft naturally in outdoor installations with its exclusive low-profile design. It is so thoughtfully and carefully designed it actually protects itself from the things that tend to stifle ordinary pool and spa heaters. It delivers uninterrupted heating performance regardless of falling leaves, wind, airborne debris, rain, downdrafts, updrafts, sleet, snow, etc.
Polymer Headers
Prevent rust stains from harming your pool or spa's surface, giving you years of trouble-free swimming pleasure.
All-Copper-Fin-Tube Heat Exchanger
The fin tubes of the heat exchanger are each made from a single piece of extruded copper. This integral-fin design allows maximum heat transfer to be attained and maintained. Raypak also uses thick stainless steel tube sheets for robust construction and rust free operation.
The 156 is available standard with Raypak's propriety AFT digital control. This control handles all the safety functions of the heater as well as the electronic ignition and flame supervision. State of the art diagnostic reporting and fault recording. This is the same control we use in our bigger gas pool heaters. Only the best will do for the model 156. The electronic ignition system requires external power (120VAC or 240VAC) and generates a pilot only when there is a call for heat. Units come with a 3 foot, 3 prong power cord.
2" Water Connections
Supplied with every Raypak 156 heater is a set of 2" flange connections to make your installation secure and effortless.
Automatic Bypass
The Raypak 156 comes standard with a built in water bypass so it can handle different GPM's without having to adjust your flow rates manually. The bypass also helps keep a constant engineered flow through the tubes to help reduce condensation caused by cold water.
Burner Tray
Every burner tray is built to last, from the stainless steel burner deck to the aluminized metals used in the heat sensitive areas. Innovative design allows for the easy removal of the tray for servicing.
Fire Tile
A ceramic fiber combustion box keeps your heater running efficiently while keeping the outside jacket cool. By using this space-age material the heater won't retain residual heat after it is turned off, allowing it to be installed without the use of costly metal heat sinks.
Energy-smart Raypak heaters consistently achieve the highest efficiency ratings. They meet or exceed all federal and state standards.
Available for natural gas or propane.
Please note the Raypak model 156 is not designed to meet the emissions regulations in areas requiring Low NOx levels.
Reduce input 4% for each 1000 feet above sea level when installed above 2000 feet elevation.

Brand: Raypak
BTU Rating
Gas Type
Natural Gas
Q & A
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 39 questions Browse 39 questions and 51 answers
I bought this unit just over a year ago, yesterday, they display board did not display any words, just dark boxes where the words should be. The on/ off switch was bad, wouldn't keep it on, so replaced that, helps keep it on, but now can't read the display, and even worse, the heater won't kick on at all... What do i need to do or get to fix?
Please help.
Damien S on Aug 6, 2018
Gas pipe size ?
A shopper on Mar 5, 2017
BEST ANSWER: We used 3/4” black pipe but that could vary depending on what your house pipe size is.
will this heater handle 15,000 gallons?
Mike B on May 20, 2016
BEST ANSWER: I've been using this heater for two seasons now and I'm very happy with it. My pool is 18,000 gallons. Water temp raises about 1.5 degrees per hour, depending on outside temp.
rollout sw open ?
paul k on Sep 6, 2015
BEST ANSWER: raise the flue vent high enough to get draft
how do start up the heater???
phil m on May 12, 2017
BEST ANSWER: Turn the switch on, set it to pool or spa mode and use arrows to set temperature. It should fire up if demand is needed (pool needs warming up).
Will this heater efficiently heat 12,500 gallon inground cement pool water?
John K on Aug 8, 2019
BEST ANSWER: Easily. I’m heating a 20,000 gallon vinyl-lined, steel-walled pool at about 2 to 3 degrees/hour on a 75 degree day. So I can get from 75 to 85 degrees in about 4 hours. Circulation is important too. Be sure you have good circulation with at least a 3/4 Horsepower pump. Concrete is a much better insulator than vinyl-lined steel, so you should have less heat loss than I do. Keeping a solar cover on while heating helps to hold the heat in and will get you to setpoint even quicker.
A shopper on Dec 7, 2019
BEST ANSWER: Yes it requires 120 AC.
can you reduce the water connections to 1.5" ?
A shopper on May 29, 2017
BEST ANSWER: My entire pool piping assembly is 1-1/2" and I connected my heater using 6' 1-1/2" flexible hoses and it works fine.
shipping cost to Illinois ?
A shopper on May 29, 2017
BEST ANSWER: To Iowa it was $155.. do everything but checkout and it will tell you..
Is Raypak same as Rheem heater?
A shopper on May 20, 2017
BEST ANSWER: In most cases yes. They are owned by the same parent company. Raypak is the sticker used for most of their swimming pool products. For this heater, different labels, but same product.
Does this come with everything I need to set it up ?
Niccole N on Apr 24, 2020
Is this (156K) appropriate for a 9 x 16 Endless Pool? Or is (106K) a better choice?
David C on Aug 26, 2016
BEST ANSWER: I will say depending on the outside temp makes the biggest difference. With my 15x30 above ground pool it rasied it about 4 degrees in about 1.5 hours with temps in the middle 70's. I oversized mine actually because it works my pool and my hot tub, I beit not at the same time. It has saved me a lot of money keeeping my hot tub at temp at anytime, rather than the electric heater which just sucked the juice
Will this heat a 27’ X 4’ above ground round pool?
Terry K on Apr 22, 2020
BEST ANSWER: Hi. If I did the math correctly, this is about 17,000 gallons. My pool is 20,000 gallons and this heater does great for that. It raises the temperature about 2-3 degrees per hour. It can go from 75F to 85F in about 4 hours and from 85F to 90F in about 3 hours.
Is this heater suitable for salt water?
A shopper on May 21, 2018
BEST ANSWER: Yes but like any salt water pool if you let the scaling of the water build up it will endanger the heater.
Heater won’t fire up switch works because the display lights up but nothing on display . No read out?
A shopper on May 5, 2022
BEST ANSWER: Check the thermal switch. Referred to as fusible link. This will keep the heater from coming on.
What is the natural gas demand?
A shopper on Jun 21, 2021
BEST ANSWER: it means you have a gas line which is active/fluid and can provide a gas flow directly from a natural gas line It does not depend on "propane tanks" to provide a source of gas.
Does a 156 outdoor need a stack ?
Big Al on Jul 28, 2019
BEST ANSWER: Outdoors no stack needed
Indoors its needed
We keep blowing 00589F switch , Why ????
Bob R on Aug 19, 2018
BEST ANSWER: Probably because you have a build up of soot in the burner. For starters you may need a vent stack for proper ventilation. Either way it sounds like the unit needs to be cleaned internally.
Which Raypak model would be equivalent to the Pentair Master Temp 250?
P J on May 1, 2018
BEST ANSWER: P-R266A-EN-C 009217 P-M266A-EN-C 009963 it has a 266K Btu rating and should be comparable to the Pentair. However the heat exchanger on the 156K model i installed did not hold up well and i had to replace it for the customer after 18 months
Late December thru mid February we have freezing temps here. Will this heater keep me from having to drain my above ground 15 foot pool?
G S on Jul 18, 2016
BEST ANSWER: Easily. Attach an Intermatic timer between the electrical power supply, and the pump plus the heater. Set the heater temp as desired and the pump to run whenever the circuit is energized Set the timer to 2 minutes on and 118 minutes off every 2 hours - 12 cycles per day- your pool will stay hot and ready to go whenever you would like. It will not freeze. It only uses 24 minutes of gas and electricity per day. You can shorten the time to-one minute on-if your pool is insulated enough.
shopping time to zip 44094?
Jim T on Jun 6, 2020
BEST ANSWER: Great heater. Quick shipping
What to do when sensor open,sensor failure shows on screen and heater won't start?
Randy W on Aug 23, 2019
BEST ANSWER: Likely need to replace the bad sensor. Is there a specific error code on the screen? The owners manual will let you know what that code means if so.
How many gallons per hour of propane does the 156 require?
A shopper on Nov 20, 2018
BEST ANSWER: We have our heater hooked to our home's natural gas. Our gas bill went up a VERY small click, but I don't know how it would run on propane.
What are dimensions of heater?
A shopper on Oct 19, 2018
BEST ANSWER: 27.5"H X 12"W X 27"L
what are the dimensions of the 156A ?
A shopper on Sep 25, 2018
BEST ANSWER: 27”D x 12”W x 27.5”H. Note that there are small feet at the base that stick out another inch on each side, making the width at the bottom about 14” instead of 12”, but the case itself is 12” wide.
How do you change temp or turn on and off?
Diane C on Jun 11, 2018
BEST ANSWER: Mine is digital. On front of heater is on/off switch.
On front is also display window. Open it and it shows
Temp and arrow buttons to turn up or down. Wish
I could send u a picture. Mine is a Ruud by raypack.
Does the heat exchanger fins come in any metal other than tin, I was told that there is a nickle type??
A shopper on Apr 29, 2017
BEST ANSWER: We have a model 155 and our paperwork indicates it is a Copper fin tube heat exchanger. We havebeen more then satisfied with this heater. Hope this helps with your question
would this unit be ok to use on a pool with a saltwater system?
Michael E on May 27, 2021
How far can I run a 1" gas line for this heater?
A shopper on Dec 3, 2020
Where are you ocated in tri cities washington ?
Shirenna on May 11, 2020
5.0 / 5.0
20 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Incredible heater!!!!!
Works great
amazingly efficient....great buy for the money, it heated my 36 x 16 foot inground pool....10 degrees 73 to 83 degrees in 10 hours....wow!!!!
August 30, 2016
over 5 years ago
Rated 5 out of 5
flawless, simple and very easy to set up and use. Following installation recommendations with a timer controlling both the Raypak Above Ground Natural Gas Pool Heater and the pump, we set the timer for 2 minutes every 2 hours. The outside pool is ready to use anytime while using a tiny minimum of gas and electricity through the winter.
December 16, 2016
over 5 years ago
Rated 5 out of 5
Great Heater!
I would highly recommend this heater. First of all it is very reasonably priced. Secondly my husband LOVES the digital display showing current pool temperature. No more looking for the thermometer in the water! Very happy with this purchase.
June 29, 2017
over 4 years ago
Rated 5 out of 5
Great Heater
We are very happy with this heater. We have been looking around for a while for an above-ground heater, and definitely found this one to be the best price. Its actually a very nice-looking heater and is very efficient. Heats the pool quickly. I would recommend it!
December 9, 2014
Rated 5 out of 5
I was impressed with my order and promptness of delivery. The heater is working and glad it was presided for electric power which saved me a lot of time.
June 19, 2017
over 4 years ago
Rated 5 out of 5
Good Heater
Ordered online. Website was easy to navigate. Order process was smooth and easy. Shipped as promised and arrived on time. Heater keeps our 10k gallon above ground pool at 90° F. Heated water initially from 65° to 90° in a couple hours. We live in ND just a few miles from Canadian border. Hoping to extend the swimming season. We’ll see how far into fall we get. PS. If you live in an area with high winds like ND suggest getting the high wind stack.
July 30, 2019
over 2 years ago
Rated 5 out of 5
Great heater for 18x33 above ground pool.
Received quickly. Works as expected. Easy installation replacement for old heater.
July 6, 2021
11 months ago
Rated 5 out of 5
Raypak Above Ground Natural Gas Pool and Spa Heater 156A
I have a 15' x 25 x 45" deep above ground pool.
The unit heats pool water up a degree an hr. ( that's from 78 to 88 degrees; a little quicker when the water is all ready warmer ) The digital control is nice.
Accuracy of the temp setting on heater display to far end of pool is within 1 degree. The 150 BTU unit is a perfect fit for this size pool.
The purchase was quick & delivery of the unit to my work place was with in a few days. Price was right as well.
would recommend Pool Supply Unlimited & Raypak heaters to others. Thanks Pool Supply Unlimited. from Andy - Massapequa Long Island.
July 2, 2019
over 2 years ago
Rated 5 out of 5
Excellent Budget Spa Heater
Bought the Raypack/Rudd 156A to replace a old Teledyne Laars Series 2. I've only had the Raypak up and working a week but it works like a champ. Very quiet and warms the spa up in less time the older higher BTU rated heater did. Pool Supply Unlimited had the Raypak delivered in only four days from two states away.
February 1, 2019
over 3 years ago
Rated 5 out of 5
Great Heater
So far so good... we have an 18 x 33 foot pool so a good size.. the heater had it heated to 88 from 70 in 24 hours.. it is very quiet and easy to operate... service was amazing. We received it in 4 days. Would recommend this company and heater.
May 31, 2021
1 year ago
Extended Warranty Program
Raypak pool and spa heaters are engineered to perform and built to last. The brand you know and trust is bringing you more peace of mind with a 2-year extended warranty on residential pool and spa heating products. If not registered, warranty is only 90 days.
The benefits of Raypak's extended warranty, include:
  • 2-year extended warranty
  • Professional in person service
  • 24-hour or same-day service
  • Genuine Raypak parts
  • Factory technical support
The product registration process is quick and easy to complete. To take advantage of the extended warranty follow these steps:
  1. Have your pool or spa heater professionally installed. Click here for a list of Raypak installation partners.
  2. Register your product online at www.raypak.com/warranty within 90 days of installation.
Warranties are effective for products installed on or after June 17, 2019. See product warranty for specific details. Conditions apply. For full warranty by product including exclusions and how to make a claim, please visit www.raypak.com/warranty.
This information was updated on 4/23/2022. For the most current information and full warranty policy please visit www.raypak.com.

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Pool Supply Unlimited is an e-commerce company that loves water. We love to pump it, filter it, heat it, chlorinate it, light it up and stare at it while we're barbequing a fat, juicy steak. There are real pool professionals working here. Our guys have seen thousands of pools in their careers, no exaggeration. We are based in Southern California and can land most products to your door (within the 48 contiguous states) in less than a week.
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