15
When the 3WOOD is installed, check that The flue, if reused:
•
Supplies the negative pressure required for the new boiler (see the table of technical specifications
on page 10);
•
is suitable for the temperature of the products of combustion, and has been calculated and
constructed according to the required standards; recommended by NFPA
•
is as straight as possible, airtight, insulated and is not blocked or choked;
•
is fitted with a cleanout door
•
The heating system should be flushed, cleaned of any slime and deposits, vented and tested for
water tightness.
•
The heating system should be equipped with a new expansion tank of sufficient size to handle the
volume of both boilers.
•
The 3WOOD Boiler should be equipped with its own make-up water.
Model #
Min. Output
(BTU/HR)
FIREBOX
DEPTH
Width
(inches)
Height
(inches)
Length
(inches)
WATER
CONTENT
(US-GALLONS)
Draft
(inch)
Weight
(LBS)
3Wood 4
75,000
14”
38”
21 9
.04
595
3Wood 5
89,000
16.5”
25
11
.07
695
3Wood 6
104,000
23”
30
12
.10
804
3Wood 7
120,000
27”
34
14
.12
903
24”
1 1/2”
1 1/2”
Installation considerations
