[Stoves] Stoves Digest, Vol 95, Issue 8

Norbert Senf norbert.senf at gmail.com
Mon Jul 9 13:10:31 MDT 2018

Hi Andrew:

This is specifically for domestic wood fired boilers.
It is part of a Federal Rule known as EPA NSPS (New Source Performance
It also covers wood stoves and pellet stoves, although those are regulated
in g/h.
For boilers including those with storage, there is an additional upper
limit of 18 g/h, no matter the size of the boiler.

It would be a non-issue for gas or oil fired boilers, and I'm not aware of
any domestic scale coal fired boilers
for sale in the US. Google has info for coal fired power plant boilers, and
they seem to be individually permitted,
and the PM limit is 0.01 - 0.02 lb/MMBtu. (Compared to 0.32 lb/MMBtu for
domestic wood)


On Mon, Jul 9, 2018 at 2:00 PM, <stoves-request at lists.bioenergylists.org>

> (snip)
> From: Andrew Heggie <aj.heggie at gmail.com>
> (snip)
> On Sat, 7 Jul 2018 at 19:48, Norbert Senf <norbert.senf at gmail.com> wrote:
> > Domestic boilers are regulated in terms of pounds of PM emissions per
> million BTU's of delivered heat. The limit is 0.32 lb/MMBtu. At 75%
> efficiency, this is equivalent of 1.7 g/kg.
> Norbert is that emission limit applicable to any boiler fired by gas
> oil or coal?
> Andrew
Norbert Senf
Masonry Stove Builders
25 Brouse Road, RR 5
Shawville Québec J0X 2Y0
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