Market Farming

[Alex McGregor <waldenfarm AT sprintmail.com>]

Rose,

Going from a 5" exhaust to a 6" vent is OK, but going the other way is 
dangerous and
illegal. Your heater was made to vent through a 6" or larger vent for 
efficiency and
safety, that is , 6" will allow all combustion gases to escape. If it's a 
propane heater,
check with the propane dealer in your area for options. Likewise, local gas 
company if
natural gas fired.

People who sell vent pipe should carry an adapter for 5-6". I've bought one 
to go from a
5" outlet to a  6" liner on a wood stove. But, be sure you can safely do this 
before
going from 6 to 5.

Alex McGregor
Walden Farm
Walden Ridge, TN

Rose & Fred Lieberman wrote:

> The greenhouse heater has a 6" exhaust.
> The vent kit has a 5" exhaust.
>
> Anyone know where I can obtain a coupler to join the two?
>
> Rose
>
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