Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 13 of 13

Thread: Adding a NG heater

  1. Back To Top    #1

    Adding a NG heater

    I had a pool installed last year, approx 15k gallons, 33x17 sport pool 3.5-5-4 ft and at the time did not think I would need/want a heater. Now I am thinking I may want to have one added. How difficult is this to do and what might it cost? I don't know what peoples thoughts are, but I would like to get something oversized so that if I decide to in the middle of the winter want to go swimming I could get it up to a decent temp with a solar blanket on it.
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

  2. Back To Top    #2

    Re: Adding a NG heater

    Just wanted to add, we have crazy cheap NG, something around .55 per therm.
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Adding a NG heater

    Kind of hard to answer this. You can find the equipment costs online. Then you have to figure out the distance and the size of the gas pipe that will have to be run to the equipment pad (this may not be cheap). You may need another equipment pad to set the heater on. And then the plumbing should be pretty easy depending on your pad setup ... at a minimum cutting 1 pipe and adding a few 90s to and from the heater, or you could add valves to bypass the heater when not in use.

    Get as large a heater as you can afford (and remember this affects the gas pipe size and thus cost). It uses the same amount of gas to raise the pool temp, but a larger heater will do it more quickly.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4

    Re: Adding a NG heater

    I specifically had my pump station added to the side of the house with the gas and fairly close by. Will have to add a new pad that is not under my deck stairs, but the run of gas line will only be 20-25 ft.
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

  5. Back To Top    #5

    Re: Adding a NG heater

    Would probably like to stick with Hayward, they have 150k-400k btu...what size would be large, but not overkill?
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

  6. Back To Top    #6
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Adding a NG heater

    There is no such thing as too large. At my previous house I had a 400k BTU Hayward that I only used for my hot tub ... just let me heat it up quickly ... depends on how fast you want to heat up your pool.

    Even at your low rates, you may be surprised at how much heating your pool is going to cost you in gas.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  7. Back To Top    #7

    Re: Adding a NG heater

    My plan is to hopefully warm up the pool a month or so before/after the season and be able to heat up once or twice over the winter for a swim. I will look at some prices and see what I can come up with.
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

  8. Back To Top    #8

    Re: Adding a NG heater

    So the H400FDN is the largest Hayward I see and I see prices online look like 1500-2000, any idea on what an install may cost? I am going to call my PB this week to get an idea. Maybe catch him over the fall/winter when he is not too busy and get a deal.
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

  9. Back To Top    #9
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Adding a NG heater

    Some calculations for you:

    400k BTU at 85% efficiency puts out ~340k BTU/hour
    15000 gallons * 8.33 pounds/gallon = ~125,000 lbs of water
    To raise the pool 10 degrees requires 125000 * 10 = 1,250,000 BTU
    This will take 1250000/340000 = 3.6 hours (neglecting heat loss due to evaporation and maintaining the temp) ... faster than I thought
    And cost 1250000/100000*0.55 = $7 (neglecting heat loss due to evaporation and maintaining the temp) ... less than I thought.

    But maintaining the temp when the air is colder than the water is going to take a lot more gas.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  10. Back To Top    #10

    In the Industry
    Qwaxalot's Avatar
    Join Date
    Jun 2012
    Posts
    439

    Re: Adding a NG heater

    Quote Originally Posted by jamie1983
    So the H400FDN is the largest Hayward I see and I see prices online look like 1500-2000, any idea on what an install may cost? I am going to call my PB this week to get an idea. Maybe catch him over the fall/winter when he is not too busy and get a deal.
    You'll find that the difference in cost between, say a 250,000 BTU heater and a 400,000 BTU heater, is pretty insignificant. Same with installation costs and the larger gas line required for the bigger heater.

    What is more of an issue is whether or not your gas meter can supply the required amount of gas, and still run the rest of your house.
    In the industry, CSP (Certified Service Professional) by the NSPI and it's successor the APSP. My company services over 600 pools every year. I think the practices regularly espoused on this forum (especially the BBB method) are outstanding; however my comments will be often oriented towards the goal of getting it done, and getting it done right now!

  11. Back To Top    #11

    In the Industry

    ps0303's Avatar
    Join Date
    Jul 2011
    Location
    FL
    Posts
    3,435

    Re: Adding a NG heater

    Go with a 400K BTU unit. Anything smaller and you will be waiting longer to get the pool warm. Difference in cost shouldn't be much.

    Have your gas company come out and look at the meter to make sure it can handle the extra equipment.
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

  12. Back To Top    #12

    Re: Adding a NG heater

    From my experience: Our gas line that runs roughly 120' or so cost just under $1k installed. The 100k btu heater was roughly $850. Running the heater with a solar cover and keeping the water above 86 overnight cost me around $5/day when the overnight temps were in the mid 50s and 80s during the day. Our NG price is slightly higher around $0.67/therm I believe.

    This might not be 100% precise, but should give you a good idea.

    In general I expect around 1 degree/hr, this is 100k BTU on a 24' AGP. Once the pool starts losing more than a degree per hour, my heater won't be able to keep up - but by that point I'll be done swimming for the season.
    Aaron
    [ Vogue Vectra 24' AG | Hard plumb: Hayward Power-Flo Matrix 1HP 2-speed, 27" sand filter & Pentair MiniMax 100 NG | Taylor K-2006 | Central IL ]
    Powered by: TFP, PoolMath & TFTestkits

  13. Back To Top    #13

    Re: Adding a NG heater

    Thanks everyone for the input. My PB said he will let me know what the cost will be by Monday. I checked, we just relocked our NG for 12 months its actually 52 cents per therm. I'm hoping all in for 2500-3000. Its a 20-25 ft straight shot from the gas meter to the pump/heater location. I cannot imagine it will be difficult to run the line. I hope there will not be too much digging involved other than running the gas line.
    15k freeform shotcrete sport pool 3.5-5-4, hayward swimclear c4030, 1.5hp hayward Northstar pump, polaris 280 with hayward booster, hayward turbo cell swg

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •