Need to Replace My Old Hot Water Tanks With Bigger Ones. Any Recs?
I have a brownstone of ten small apartments. Twelve adults. Apparently there is a lack of hot water on some weekday mornings after 7:30 am. My guess is that it’s the morning rush and the lack of hot water is due to a temporarily insufficient volume of hot water because too many people are showering…
I have a brownstone of ten small apartments. Twelve adults. Apparently there is a lack of hot water on some weekday mornings after 7:30 am. My guess is that it’s the morning rush and the lack of hot water is due to a temporarily insufficient volume of hot water because too many people are showering at about the same time.
It’s a gas-powered two-tank system. Each tank is 42 gallons. They’re eighteen years old so due to be replaced anyway.
Looking for someone who can do a good analysis on the hot water needs of the building, make suggestions, and of course can do a good job at a reasonable price.
Laars Pennnant PNCV200 and a 119 gallon storage tank. Decent eff. without spending boatloads of money and all the hot water you’ll ever need.
Or perhaps a Lochinvar Knight with a storage tank. Pricier but higher eff.
Kinda what MP said.
Gracias, MP.
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No.
You probably have a tank-type water heater now. A storage tank doesn’t make hot water, it just, well….stores it.
It’s kind of a common way to make hot water in a multi-family. Get a short 200,000-or-so BTU water heater and a storage tank and move water between them with a small (90-watt) shuttle pump.
Master Plumber,
“Increasing storage is usually a cheaper long-term solution if you can do it without a chimney connection, as in using an insulated storage tank.”
I assume that “insulated storage tank” is what I have now. So if I go that route then it would just be a matter of determining how much to increase the storage size(plus maybe an increase in recovery) to meet the building’s needs without oversizing. Right?
You already seem to know that you need to overcome what we call a “dump factor”; a peak demand that is vastly different from non-peak.
Your choices are to increase recovery, storage or both.
Increasing storage is usually a cheaper long-term solution if you can do it without a chimney connection, as in using an insulated storage tank.
Steam Man likes adding solar energy to gain efficiency and output. Maybe that’s worth a conversation.
Feel free to call us to discuss your needs.
-SteamMan