Commercial water heater output

Discussion in 'Water Heater Forum, Tanks' started by ferd, Sep 15, 2011.

  1. ferd

    ferd New Member

    Joined:
    Mar 11, 2008
    Location:
    Ohio
    If I have a 400,000 btu boiler heating water into a 370 gallon tank and I change the tank out to a 120 gallon tank, how much capacity do I loose? Assuming 95% eff boiler.
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    What's your usage rate and temperature? Incoming water temp?
     
  3. Sponsor

    Sponsor Paid Advertisement

     
  4. ferd

    ferd New Member

    Joined:
    Mar 11, 2008
    Location:
    Ohio
    output 130 deg incoming can be down to 40 boiler should put out 500 gph Just wondering what differance the tank will make.
     
  5. jimbo

    jimbo Plumber

    Joined:
    Aug 31, 2004
    Location:
    San Diego
    Round numbers, the boiler heats produces 400 gallons per hour. FIRST hour delivery is the recovery rate ( 400 gallons per hour ) PLUS 70% ot tank. SO your first hour availablilty drops from 660 gallons to 485 gallons. After the first hour, it is all recovery, 400 gallons per hour.
     
Similar Threads: Commercial water
Forum Title Date
Water Heater Forum, Tanks Installing a new water heater Tuesday at 11:28 PM
Water Heater Forum, Tanks Proper Gas Hot Water Tank Flushing Jul 18, 2015
Water Heater Forum, Tanks Short anode rod life and VERY hard water Jul 14, 2015
Water Heater Forum, Tanks Undersink hot water heater is semi-clogged Jul 8, 2015
Water Heater Forum, Tanks Does the drain fitting unscrew from water heater body? Jul 7, 2015

Share This Page