Hi Effeciency Water Heater

saul deutsch

I don't know whether the information being given to me is correct. My boiler is a 50,000 btu output (Slant Fin SE70 model-gas). My house heat loss cal. is 48,000. There are 2 adults and 5 children. I am being told that I may have a problem with a 60,000 gal. Indirect Water Heater. The house during winter time especially on a real cold day may not be able to handle both. The temperature may start to drop since a total replenishing of the water tank may take 60-90 minutes. Coupled with a call for increased heat in the morning hours to bring up the temp. from the night setting I may only be looking for trouble. I would like to know if this analysis is correct. If yes, is there any way around it (short of replacing the boiler with an excess capacity) so that I can still install an indirect system. If I can't use the indirect, what other systems are out there? I wan't something that is long lasting, reliable and energy efficient. Please list particular names and models.

Thanks.

Al Letellier_9

hi efficiency hot water

Assuming all your numbers are correct, you're boiler is maxed to peak load at design temp, and will have trouble keeping up. Even with no heat load, 50MBH is not of a lot of energy to heat up a water heater with that kind of demand. Being a gas system, I would opt for a tankless or "on-demand" water heater for your home. They make a ton of hot water,with variable input and put no strain on the boiler. It seems your best option without increasing boiler size. As to the set back you mentioned, I would strongly recommend not using setback during peak heating demands, especially with such a small boiler. Better to let it run to keep up than run forever to catch up.

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