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High Mass vs low massBoiler
I atended a seminar last night showing HTP's new product line. What caught my eye was the high mass boiler they call the Pioneer. Basically its a condensing boiler built into a buffer tank. It's basically the same design of the Phoenix water heater brought up to boiler specs and temps. I know Siggy has been extolling the virutes of this type of product for years and as far as I know this is the first one I've seen. Here in MD the plumbers just fall on the floor and go into a gran mall seizure when faced with understanding and piping a primary secondary piping scheme. I personally don"t underrstand the problem but I think this high mass boiler would help these poor souls out and build in a margin of error for heat load sizing challenged contractors. When installing a lot of micro zones the built in buffer tank is a handy thing to have. I think it would also be good on low mass heat emitters such as copper fin baseboard and kick space heaters. The low mass boilers excell when linked to high mass heat emitters like radiant floors and big old cast iron rads, but become more finicky when hooked up to low mass emitters. I think the more interesting question is, can HTP build in the quality we all craved through the hard times with other previous products. I also haven't looked into any price comparisons to the existing low mass mod cons, but my interest has been piqued.