Drolet heat pack set up

Getwidit

New Member
Aug 28, 2019
24
Stuyvesant ny
Hi, to start I just purchased a drolet heat pack. I'm very green to indoor wood burning. I've had outdoor boilers in the past but that's about my extent..

anyway to start I'm going to run my exhaust up an existing outside of house chimney that is accessible through the foundation wall. Currently my furnace runs through it. I has a 9x13 clay flu liner. I planned on running a 6inch flex liner with 1/2 inch insulation for the heat pack. And running the furnace up with a 5 inch flex no insulation.

My next set up questions is hooking into duct work. I have two main smooth 8x22 inch trunks running the length of the basement about 18 ft. Which then feeds 4 lines on the first floor. And 3 on the secon . My return is similar except it only feeds from the first 2 registers.. my original thoughts were to put the heat pack directly under the main home run. Cutting a hole in the top of the plenum and piping it directly do the line. Any thoughts.
 

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Getwidit

New Member
Aug 28, 2019
24
Stuyvesant ny
6 inch pipe has 27 sq inch area multiply that by 6 and you get 169.646 sq inches. My main trunk 8x22= 176 sq inches. So I'm assuming that should have no problem supplying. Would it be more intelligent to just pipe 6 lines into the main trunk instead of one big on?
 

brenndatomu

Minister of Fire
Aug 21, 2013
4,081
NE Ohio
my original thoughts were to put the heat pack directly under the main home run. Cutting a hole in the top of the plenum and piping it directly do the line. Any thoughts.
Bingo.
The only question would be if your trunk line has proper CTC (clearance to combustibles) fossil fuel ducts usually don't.
You might have to set the furnace elsewhere and then run a duct(s) over to existing...check the duct clearances in the manual...usually the first 6-10' need to have 6" CTC
 

Getwidit

New Member
Aug 28, 2019
24
Stuyvesant ny
What I'm seeing is 5 inches off the top of plenum and 1 inche off the ducts past a ft. And the main trunk line is attached directly to the joists. I can lower it an inch easy enough.
 

brenndatomu

Minister of Fire
Aug 21, 2013
4,081
NE Ohio
Ok, that's a little tighter CTC than I have run into before...never fooled with a Heatpack before though either.
On a different subject...you ordered one, what Friday, or Saturday? I see they have a $200 rebate on them now starting Sept 1 :rolleyes:
 

brenndatomu

Minister of Fire
Aug 21, 2013
4,081
NE Ohio
Sounds like liner special in August and rebate in September...you should be able to work something out...
 

brenndatomu

Minister of Fire
Aug 21, 2013
4,081
NE Ohio
That would probably work. You could also just make one...just a piece of 24-26 ga sheet metal (duct metal) mount an 1/8" rod on one side for a hinge pin. Rivet or screw some sheet metal or angle inside the plenum or duct for it to sit on.
Would this be going on the oil furnace?
 

Getwidit

New Member
Aug 28, 2019
24
Stuyvesant ny
That would probably work. You could also just make one...just a piece of 24-26 ga sheet metal (duct metal) mount an 1/8" rod on one side for a hinge pin. Rivet or screw some sheet metal or angle inside the plenum or duct for it to sit on.
Would this be going on the oil furnace?
yessir I wanted it to work seamlessly though.