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Thread: New construction in Austin, Tx. Heatpump or gas heater?

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    New construction in Austin, Tx. Heatpump or gas heater?

    We are still in the decision making stage of the construction of our new pool. We are trying to decide if it is better to go with a heatpump or a natural gas heater. We tend to use a pool at night a lot so our goal with the heater will be to keep the water at a comfortable temperature after the sun has gone down. We also anticipate that our swim season will be from from late March through the early parts of November...depending mostly on how warm it is outside. I do not anticipate that we will want to heat the pool during the winter months. We are not having a spa built with the pool.

    All that being said...what would be the most economical route to go with regards to energy costs?

    Thanks!

    Scott
    20k gallon AG pebble pool in Austin, Texas. All Pentair equipment (DE, IC40 SWCG, heatpump, variable speed pump with aux pump for the cleaner). Built in 4/2013.

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    chiefwej's Avatar
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    Re: New construction in Austin, Tx. Heatpump or gas heater?

    Solar.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    JasonLion's Avatar
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    Re: New construction in Austin, Tx. Heatpump or gas heater?

    As chiefwej said, solar is by far the most economical. However, if solar is out for some reason, a heatpump is best if you are going to maintain the pool at swimming temperature for weeks/months at a time in the spring/fall. Natural gas is better if you just want to swim once in a while in the spring/fall.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Join Date
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    New Caney, TX 77357
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    Re: New construction in Austin, Tx. Heatpump or gas heater?

    Quote Originally Posted by sfawley
    We are still in the decision making stage of the construction of our new pool. We are trying to decide if it is better to go with a heatpump or a natural gas heater. We tend to use a pool at night a lot so our goal with the heater will be to keep the water at a comfortable temperature after the sun has gone down. We also anticipate that our swim season will be from from late March through the early parts of November...depending mostly on how warm it is outside. I do not anticipate that we will want to heat the pool during the winter months. We are not having a spa built with the pool.

    All that being said...what would be the most economical route to go with regards to energy costs?

    Thanks!

    Scott
    Once your water has warmed up in the spring, you won't likely see much drop in temperature overnight so you wouldn't really need the heater to keep the water at a comfortable temperature after the sun has gone down. In the middle of the summer you will likely be wishing that it would drop a few degrees. So the heater would really be used to extend your swim season by "opening" earlier in the spring and "closing" later in the fall (even though we generally don't "open" and "close" our pools in Texas as they do in northern climes). Heating a pool from cold to warm takes a lot of fuel not to mention the time involved (unless you have a really big heater) and keeping it at a comfortable temperature for a few weeks in the spring and fall could be rather costly. In Austin I would look at solar or heatpump if you want to use it regularly during the cool/cold nights of early spring/mid-late fall.
    20K gal, inground with attached spa, pebblefina plaster (bella blue), flagstone coping, moss rock waterfall, Sundek - Indian wheat, (2) Jandy PHPM2.0 (filter pump and waterfall), Jandy DEV60 DE filter, Polaris 280 pool cleaner, Polaris Halcyon PB4-60Q booster pump, Polaris 1.5 HP Air Blower, (2) Jandy WaterColors LED lights, Jandy LXI400P Heater, Jandy AquaPure PLC1400 SWG, Jandy AquaLink RS PureLink Controller and PDA.

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    Re: New construction in Austin, Tx. Heatpump or gas heater?

    Are you sure you need a heater in Austin? I do not have a pool heater here in Dallas, and have no desire for one. As Steve stated, come summertime you are going to want to LOWER your pool temps. If you still are inclined to have a heater, going solar will allow you to run the pump at night through the solar panels and get your some lower temps for the next day. If I were to have a heater, I'd go solar just for that single reason.

    Once pool season is here, we swim at all times of the day and night. It takes a lot of energy to lower the temp of a pool, and you won't see it drop in just one night.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    Re: New construction in Austin, Tx. Heatpump or gas heater?

    We installed a heatpump a couple years ago. If you put a cover on the pool you can maintain 80F except for long ambient dips into the 30s. The energy cost is similar to a large air conditioner. We decided not to heat it this year because my wife is swimming with a team and the kids are not that enthusiastic about going outside in bathing suites the winter. Austin increased energy prices for us about 0.02/kWh, which is about 20% more than last year.
    38K Gallons IG, Intelliflow VS-SVRS, 30GPM 24/7, 72sqft DE Filter, Spectralight UV, Jandy C1900 driving Liquid Chlorine and Acid (toys, I know..), Jandy LXi gas heater, Aquacal SQ175 Heatpump, Riverflow Competition swimmer, Jandy automation, Touch and iAqualink, Pebblesheen | The Build

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