Flow Heater

Rinnai Continuous Flow Water Heater- Any Experience with it?

Can anybody let me know the experience with these heaters. I have a ductless heating system and have to run my furnace either with a combo unit like this or with a separate boiler and water heater. The boiler/water heater combo is about $3000 more expensive. I had heard that this continuous flow water heaters had problems although they have been used in Europe for years. Any comments from those familiar with my setup.

I have installed 10-15 Rinnai tankless heaters and two of them outside. I recommend putting the small electrical circuit on a backup battery or generator so that if you lose power during cold months the small amount of pipes won’t freeze outside.

They work very well, and ive never had a problem with any of the ones Ive installed.

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