Dual water heater in mountain cabin

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by pchiker, Mar 14, 2010.

  1. pchiker

    pchiker New Member

    May 6, 2006
    I have a 3700sf cabin in Big Bear, CA that is a vacation rental. I currently have a 50gal gas water heater and a few guests have run out of hot water mainly due to the use of bathtubs. There are 3 bathrooms consisting on 2 showers, 1 shower/tub combo, and 1 jetted tub.

    The problem is the cabin normally has 12-14 guests. My plan was to add another 50gal gas water heater in series. I checked into tankless and it is still not cost effective.

    Is this the best solution for my problem?

    Thanks, David
  2. Doherty Plumbing

    Doherty Plumbing Journeyman & Gas Fitter

    Jun 22, 2009
    Red Seal Journeyman Plumber & Licensed Gas Fitter
    Penticton, BC
    You your best solution is a tankless :p

    Adding another gas tank might prove costly as well because you need gas work done and you might need to increase the size of the flue from 4" to 5" depending on your local codes. This could be costly.

    But none the less having two 50gal tanks will probably still cause you to run out of hot water at peak demand when you have people taking showers simultaneously just after someone fills a bath (or w/e scenario you can imagine that takes a large volume of hot water).

    However adding a second tank in series will DEFINITELY help your situation out.
  3. Sponsor

    Sponsor Paid Advertisement

  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    A 75 gallon would be a better choice even though it is considerably more costly than a 50 gallon one. You get 50% more storage, but more important, you get double the BTU input, which is what helps to maintain the temperature of the outgoing water.
  5. pchiker

    pchiker New Member

    May 6, 2006
    My current BTU is 38. If I were to go to a single 75 gallon tank what should the BTU be? I was quoted $1200 to add another 50gal tank.
Similar Threads: Dual water
Forum Title Date
Plumbing Forum, Professional & DIY Advice Dual valve on hot water line Sep 21, 2017
Plumbing Forum, Professional & DIY Advice Dual Gas Hot Water Heater - Low Temp May 12, 2008
Plumbing Forum, Professional & DIY Advice Why does my shower water temperature gradually get cooler? Jan 29, 2008
Plumbing Forum, Professional & DIY Advice dirty residual in instant host water hose Nov 30, 2007
Plumbing Forum, Professional & DIY Advice dual water heaters to one Jan 31, 2006

Share This Page