Roy Clarke wrote:In the UK we have a requirement in the regulations:
"the outlet from a flue should be above the roof of a building in a position where the products of combustion can discharge freely and will not present a fire hazard, whatever the wind conditions."
any ideas how this can be dealt with?
It's the only bit about RMHs which is difficult to accommodate.
Erica Wisner wrote:
Here in the US we have propane heaters that actually exhaust into the home, as do natural gas kitchen stoves with their open flames. Do you have these in the UK also?
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glen murry wrote:I have a few questions related to installing an RMH in my basement, utilizing an existing chimney:
...I was planning on building a fire brick heat riser in a 55 gallon drum, do I need to insulate the firebrick riser? Will the square heat riser in the round drum screw up the internal air flow because of "pinch points" at each of the four corners?
Will "rising damp" from the basement slab be a problem with the cob construction? It is an old house and has no underslab vapor barrier.
Adam Smith wrote:I was wondering about this myself. It would be very hard to get an insurance company to approve it since it's not UL listed.
And there is no way to regulate or shut off the burn; no air intake regulator or damper downstream.
And the barrel heat chamber would be prone to rusting out in a few years and would need a way to be changed out quickly and efficiently without having to chiesel it out.
And the flue. They are going to want to see a clay tile lined flue, espeically if it is over wood.
And I don't know about it running sideways without any or hardly any rise.
I know from experience on a regular flue they want triple wall stainless steel or the clay liners inside the flue that funnel the flue gases into the next joint so that if the mortar cracks or falls out the flue gases will still be contained. I would think the thermal mass would develop cracks over time or you would have to at least expect it to.
I don't know how long the galavanized 6" stove pipe will last encased in the thermal mass, but not permanately. From our King circulator heater to the flue we would change out the blued pipe every few years.
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