Posts: 703
Threads: 37
Joined: Jun 2008
Don't know regarding catchments, but as long as your system pressure is sufficient, that shouldn't have any effect. My boy claims that the owners of the ones thev'e put in on the kohala side are delivering well regulated hot water. And as he says, if those folks building in Hualilai weren't happy, they sure would have made it know to him. This is why I posted this question, wanted local experience with them. He also said that they had been installing the 2700 model, rated for 2 or 3 concurrent use's.
dick wilson
dick wilson
"Nothing is idiot proof,because idiots are so ingenious!"
Posts: 1,273
Threads: 41
Joined: Oct 2007
I've installed a lot of them, they're great. They're very commonly installed improperly.
The little ones are very good, and I like the Bosch especially as a brand, and have installed them on boats.
The key to the big ones is they pull A LOT of gas when they come on. Most need a dedicated 1 inch line from the meter or they starve for fuel. Some are bigger than 200000 btu's so it should be no surprise. If you make sure they have the gas they need when they need it you will have no problems.
As well, a lot have a "safety" over ride that needs to be "over ridden" before they work in the manner you expect. Elsewise the output temp is capped at 110.
Posts: 703
Threads: 37
Joined: Jun 2008
Jay; Thanks. The installation instructions for the 2700 do not make the 1" line plain. I probably would have gone with 1" anyway as you get a better volume, without starving anything on the supply line. Can allways step down thru a shutoff valve to each appliance on the service line. According to Bosch the output temp is selectable, however in many area's local code specify max output temp to avoid scalding, haven't checked Hawaii county code as yet. I normally run water heaters at 120 F. Again thanks.
dick wilson
dick wilson
"Nothing is idiot proof,because idiots are so ingenious!"