Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: Need to replace heater - should i also replace filter?

  1. Back To Top    #1

    Join Date
    May 2008
    Location
    Houston, TX
    Posts
    20

    Need to replace heater - should i also replace filter?

    I need to replace my 25+ year old heater. Since the DE filter is also that old, would it make sense to replace it also? Are the newer DE filters easier to take apart for cleaning?
    22k gal free form gunite w/spa, Aqualink RS-8, Jandy Aquapure SWG, 2 Jandy ColorLite, Polaris 280, Raypak 400k Low NoX Heater.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    The newer filters are easier to take apart but they aren't exactly easy. I mostly believe that if it isn't broken don't fix it. If there is nothing wrong with your filter there is no real need to replace it. The savings of doing them both at once won't be all that large.
    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

  3. Back To Top    #3

    Join Date
    Apr 2007
    Location
    Ft Lauderdale, Florida
    Posts
    1,455
    wow,25 years is a long time for a heater. what was your secret?

    I agree with Jason, but rather than spending your money on a filter that's still working fine, spend it on a more efficient gas heater or consider a much more efficient heat pump.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  4. Back To Top    #4

    Join Date
    May 2008
    Location
    Houston, TX
    Posts
    20
    I'm not really sure why the heater lasted so long, except that we haven't used it a whole lot here in Houston. We've been in the house 8 years and the previous owner was not the best care giver. The pool was replastered/coped/tiled about 4 years ago.

    I would love a heat pump that also has cooling abilities, but we have a pool/spa and its my understanding that the heat pumps only go a little above 100k BTU which is not really enough to heat the spa in a reasonable time. It sure would be nice to be able to cool the water below 90 degrees in August. I've read running the pumps at night and using a fountain will help (on dry days) so I'm going to give that a shot this summer.
    22k gal free form gunite w/spa, Aqualink RS-8, Jandy Aquapure SWG, 2 Jandy ColorLite, Polaris 280, Raypak 400k Low NoX Heater.

  5. Back To Top    #5
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887
    You can get larger heat pumps but they are rare and tend to be quite expensive. Some people pair a heat pump with a gas/propane heater to get the best of both worlds, again more money up front.
    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

  6. Back To Top    #6
    SeanB's Avatar
    Join Date
    Mar 2007
    Location
    Missouri City (suburb of Houston, TX)
    Posts
    2,622
    Be sure to check with Marcus over at http://www.poolheatpumps.com/

    He sells gas and electric heater in addtion to heat pumps.

    If you are a subscriber to the TFP newsletter, let him know for $100 off!
    TFP Founder

    My Pool: 13K gal IG gunite with 7' spa, Pentair Cartridge Filter, Intellichlor IC40 SWG, Polaris 280 Cleaner, TF-100 Test Kit w/ salt test.

  7. Back To Top    #7

    Join Date
    Apr 2007
    Location
    Ft Lauderdale, Florida
    Posts
    1,455
    Wolly,
    Heat Pumps have the ability to heat and cool, such as here.
    http://aquacal.com/heat-pump-informatio ... index.html

    The amount of time needed to heat up your spa will be proportional to what size heater you currently have. If you have a 400,000 BTU heater, at 70% efficiency (optimistic with a 25 yr old gas heater), you're getting 280,000 BTU output of heat. The AquaCal SQ156, for instance, provides 127,000 BTUs of heat, which is a little less than half the BTU output of a 400,000 gas heater. So, it will take a little more than twice the time it took for the gas heater to get your spa up.

    If it took 15 minutes with the 400,000 BTU gas heater, it will take a little over 30 minutes for the heat pump to do it.

    That's not too bad or much of a problem. Just switch on the heater 30 minutes before you want to use it, rather than 15 minutes before.

    In Houston, the temperatures really don't drop down enough to warrant using the gas and heat pump approach. During the months that you're more inclined to venture outdoors and use your spa, are the same months that a heat pump would be very efficient in maintaining heat to your pool.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  8. Back To Top    #8
    Wow... 25 years! I thought the 15 years our previous home owner got was almost a record.
    2003 Coleman MAAX Collection Model 706 - 400gal

Posting Permissions

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