JustinChase
New Member
I'm building a house for a vacation rental, with 4 bathrooms, which can sleep 8-10 people. I don't want to run out of hot water too soon, nor force people to have to wait too long for more hot water once the tank runs cold.
My ground water temp is about 55 degrees here.
I don't think people will expect to have endless hot water for 4 simultaneous showers, followed quickly by 4 more, but I can certainly see this situation happen with 4 couples trying to all get ready to go to dinner while on vacation.
I like the idea of the heat pump water heaters for efficiency, but I believe they take quite a long time to re-heat.
So, I'm thinking of adding an electric tankless heater under each pair of bathrooms (side-by-side, on each side of the house) to help, but I'm not sure how helpful this will really be.
I'm not sure how hot the incoming water can be in these tankless units, and once the main tank runs cold, they probably won't heat the large flow very well anyway.
I can't use just electric tankless as the size required for this flow simply requires too much electricity to be practical.
The other option i see is a second heat pump water heater, but that's a more expensive option, and still suffers from long recovery time.
There is probably no IDEAL option here, but I'd love to hear your thoughts on how to handle this (probably unique) situation.
My ground water temp is about 55 degrees here.
I don't think people will expect to have endless hot water for 4 simultaneous showers, followed quickly by 4 more, but I can certainly see this situation happen with 4 couples trying to all get ready to go to dinner while on vacation.
I like the idea of the heat pump water heaters for efficiency, but I believe they take quite a long time to re-heat.
So, I'm thinking of adding an electric tankless heater under each pair of bathrooms (side-by-side, on each side of the house) to help, but I'm not sure how helpful this will really be.
I'm not sure how hot the incoming water can be in these tankless units, and once the main tank runs cold, they probably won't heat the large flow very well anyway.
I can't use just electric tankless as the size required for this flow simply requires too much electricity to be practical.
The other option i see is a second heat pump water heater, but that's a more expensive option, and still suffers from long recovery time.
There is probably no IDEAL option here, but I'd love to hear your thoughts on how to handle this (probably unique) situation.