I have a oil space heater that call for a 4 or 5 in. chimney. Will a 6 in. work as well? The total length is 4 ft.
Answer:
These things are engineered too closely to tolerate a 20% change in flue size and still operate efficiently or safely.
Courtesy of Ren Molnar, Construction Consultant at HomeFocus.com. I can also be reached at (613) 748-3003 and Home Focus phone-in is broadcast live 8 to 10 A.M. (Ottawa, Ont. time) on Saturdays on www.cfra.com.