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Thread: Winterizing my new Raypak Heater

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    Winterizing my new Raypak Heater

    First, I can't believe how much more enjoyment my wife and young daughters got out of our pool this season once we added the above mentioned heater. It is a game changer!

    Anyway, now that it is getting time to close, what are thoughts on the heater? Given the cost of the thing, my first inclination is not to leave it out to get battered by a Chicago winter. Of course, given the size, bringing it in risks banging it around, and I am guessing they are made to stay out anyway??


    What are thoughts? Leave outside and stop worrying? And is the only winterizing of the heater that needs to be done is turn off the gas and open the drain plug? It seems too simple.
    Dedicated TFPer since 2012 with recommended test kit
    Above ground, 30 foot round pool, 21,000 gallons
    Hayward 150 sq foot cartridge filter, 1HP Waterway pump
    Raypak 400K BTU NG Heater!
    Installed in 2006? (just a guess, pool came with house I purchased in June 2012)

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    Mod Squad JVTrain's Avatar
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    Re: Winterizing my new Raypak Heater

    Instructions may only say to remove the drain plug. In my opinion, you need to blow compressed air through the heater with the drain plugs removed until you see no misting come out of the drains. Then pause the air flow and do it again. And maybe again. You want to get as much water out of the heater element as possible. Only use about 20-30 psi if you're using a compressor.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
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    Re: Winterizing my new Raypak Heater

    Blow air thru the exchanger to remove all possible water. Remove the plugs from BOTH headers. And, remove the pressure switch tubing from the manifold! Oh, turn the gas off.

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    wjr75's Avatar
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    Re: Winterizing my new Raypak Heater

    We keep our heater outside uncovered for the winter. We actually use it for the hot tub until December. Not sure if they sell covers or not but it may actually keep moisture in it which may accelerated corrosion.
    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
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    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

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    Re: Winterizing my new Raypak Heater

    My heater stays out year round (10 years now). Snow is really no different than rain and my western NY winters are just as rough as anything Chicago gets. I make sure the water is drained out and turn off the gas although there is no real reason to have to do that if the plumbing is good. In fact I am sure there has been a season or two where I forgot to. If you are real concerned, buy a gas grill cover that will fit over it and use that to cover it
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: Winterizing my new Raypak Heater

    Great, thanks for the thoughts everyone!
    Dedicated TFPer since 2012 with recommended test kit
    Above ground, 30 foot round pool, 21,000 gallons
    Hayward 150 sq foot cartridge filter, 1HP Waterway pump
    Raypak 400K BTU NG Heater!
    Installed in 2006? (just a guess, pool came with house I purchased in June 2012)

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    Re: Winterizing my new Raypak Heater

    Quick follow up on winterizing the heater, I've drained and blown compressed air through the system, is it best to leave the drain plug out and leave the intake and return heads (if those are the correct terms?) open? Or does that risk rain and snow re-entering the system?
    Dedicated TFPer since 2012 with recommended test kit
    Above ground, 30 foot round pool, 21,000 gallons
    Hayward 150 sq foot cartridge filter, 1HP Waterway pump
    Raypak 400K BTU NG Heater!
    Installed in 2006? (just a guess, pool came with house I purchased in June 2012)

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    banditig's Avatar
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    Re: Winterizing my new Raypak Heater

    Mine came with plugs for the intake and returns (you could devise your own). My manual says do not put a cover over the heature will trap moisture. It also says to remove the presure switch. I keep the switch inside the house.
    15x54 swim & play vinyl metal wall AG
    Hayward S210T sand filter 1.5 HP Pentair Superflo vs
    Rheem raypak 130,000 BTU mv ng
    Jacuzzi 345 whirlpool bath
    TF-100 test kit, HM digital com100 Wanda the Whale

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    Re: Winterizing my new Raypak Heater

    I am definitely not going to cover, not sure I have a pressure switch?? Didn't see anything in the manual. Do you leave the drain plug removed or replace after draining?
    Dedicated TFPer since 2012 with recommended test kit
    Above ground, 30 foot round pool, 21,000 gallons
    Hayward 150 sq foot cartridge filter, 1HP Waterway pump
    Raypak 400K BTU NG Heater!
    Installed in 2006? (just a guess, pool came with house I purchased in June 2012)

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    banditig's Avatar
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    Re: Winterizing my new Raypak Heater

    I leave the drain plug out. Mine has pressure switch right behind a small panel near drain plug
    15x54 swim & play vinyl metal wall AG
    Hayward S210T sand filter 1.5 HP Pentair Superflo vs
    Rheem raypak 130,000 BTU mv ng
    Jacuzzi 345 whirlpool bath
    TF-100 test kit, HM digital com100 Wanda the Whale

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    banditig's Avatar
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    Re: Winterizing my new Raypak Heater

    Raypak Residential Pool /Spa Heaters - Pool/Spa Heaters, 206A-406A

    they should have your model with winter instructions
    15x54 swim & play vinyl metal wall AG
    Hayward S210T sand filter 1.5 HP Pentair Superflo vs
    Rheem raypak 130,000 BTU mv ng
    Jacuzzi 345 whirlpool bath
    TF-100 test kit, HM digital com100 Wanda the Whale

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    Re: Winterizing my new Raypak Heater

    Thanks Banditig. I do have the manual, but the winterizing instructions were so thin it seems like there had to be more. All the manual says is turn off the gas and electrical supply and open the drain plug, which I have done.
    Dedicated TFPer since 2012 with recommended test kit
    Above ground, 30 foot round pool, 21,000 gallons
    Hayward 150 sq foot cartridge filter, 1HP Waterway pump
    Raypak 400K BTU NG Heater!
    Installed in 2006? (just a guess, pool came with house I purchased in June 2012)

  13. Back To Top    #13

    Re: Winterizing my new Raypak Heater

    Also, blow out any debris from underneath the heater that might hold or catch water. We cover our filter, pump, lines, and heater with one large tarp but there is lots of air circulating. All lines are filled with anti-freeze.

    Gary R.



    Quote Originally Posted by Pauls234 View Post
    Thanks Banditig. I do have the manual, but the winterizing instructions were so thin it seems like there had to be more. All the manual says is turn off the gas and electrical supply and open the drain plug, which I have done.
    18 X 32 Oval Inground Gunite Pool 20,000 Gallons Epoxy Painted in 2012
    Tagelus Sand Filter TA 60 D/TA 60-Hayward Super Pumps 1 H.P.
    Ray-Pac Heater 266,000 BTU, KLeen Machine Pool Cleaner
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    banditig's Avatar
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    Re: Winterizing my new Raypak Heater

    Your probably ok. Some heaters let you reverse the flow by rotating the header 180 degrees. I think that's why mine has switch on the bottom
    15x54 swim & play vinyl metal wall AG
    Hayward S210T sand filter 1.5 HP Pentair Superflo vs
    Rheem raypak 130,000 BTU mv ng
    Jacuzzi 345 whirlpool bath
    TF-100 test kit, HM digital com100 Wanda the Whale

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