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by p1esk 216 days ago
Two reasons I decided not to go with tankless:

1. Can’t have recirculation pump to supply hot water instantly throughout the whole house.

2. Significantly higher energy bill compared to heat pump.

An additional bonus is the heat pump cools my garage in the summer.

2 comments

Recirculating works fine with these, if I chose to do it. They both have a tiny hyper-heated insulated tank for the purpose so they can trickle a hot water loop to the furthest destination. They also have a recirc mode which would barely show up on your monthly energy bill.

If I was building new construction I’d do it, but the upgrade just isn’t worth it for me at the moment since it would require drywall repair and running another return line for relatively minimal benefit.

Note as others have pointed out: this setup is not to save money, it’s entirely quality of life as the primary metric under consideration.

1 sounds like a huge inefficiency?
Why?
In SE Asia, tankless is generally placed closer to where it comes out.

Recirculation pump means that you're paying to keep your pipes from getting cold.