John Kogel Posted November 22, 2013 Report Share Posted November 22, 2013 Some of y'all have seen these before, but it was new to me. Luckily, I found the spec sheets and did a quick study. The Rinnai demand water heater supplies both domestic hot water and the 75,000 BTU/hr hydronic furnace, which is simply a heat exchanger and a blower fan. The RU98i water heater has a max output of 199,000 BTU/hr and that would be a whole lot of hot water. I ran the thermostat up and the house warmed up 2 degrees in about 15 minutes. It's a one storey bungalow, about 1600 sq ft. Anyway, it works well. Crawlspace is ok but needs some strips of carpet to finish it up, eh? [] Click to Enlarge 51.75 KB Click to Enlarge 49.33 KB Click to Enlarge 49.32 KB Click to Enlarge 43.25 KB Quote Link to comment Share on other sites More sharing options...
rkenney Posted November 22, 2013 Report Share Posted November 22, 2013 Crawlspace is ok but needs some strips of carpet to finish it up, eh? [] Skip the carpet (harder to roll a creeper), how 'bout a little insulation. Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted November 22, 2013 Report Share Posted November 22, 2013 Look again Bob. EPS and fiberglass around the perimeter. Wouldn't be my first choice, but it'll do. Quote Link to comment Share on other sites More sharing options...
John Kogel Posted November 22, 2013 Author Report Share Posted November 22, 2013 It is a conditioned crawlspace, Bob. There are three adjustable heat registers and no vents to the outdoors. I agree there are better products for insulating the perimeter. I do sort of a duck-walk with my feet flat on the floor, works for me. But my client will need to crawl in hands and knees to change the filter. Quote Link to comment Share on other sites More sharing options...
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