For this first season, I've been using some regular, cheap chimney extension pipe and have already had it start to disintegrate. I've been planning to put the proper, high quality pipe on it that twist-lock mates with the top of the furnace's existing stub of a chimney. The Heatmor documentation doesn't cite a product number, brand name, etc., and just leaves the topic as a vague "contact your dealer" issue. As far away as my dealer is located, I'd rather just determine the proper type and buy it from the lowest priced source I can find (online or off).
While the high prices here really took me by surprise, the DuraTech insulated extensions look to me like the right stuff. The twist-lock interconnects on it look exactly like what I see on our furnace. Does this look correct for a Heatmor 200CSS?http://www.northlineexpress.com/multiple_items.asp?cc=8SPDuratech
Finally, does anyone have any opinions on the use of caps and spark arrestors? I've seen enough sparks come out of my chimney sometimes to worry me when it gets seriously dry and windy (like it has been off and on this past week... already brush fires all over our region).
The pricing on this stuff is kind of crazy, but if it's the right kind, performs well and is going to last me for ages... I'll bite the bullet. Just want to be sure it's the right stuff.
Oh, and they only sell shorter lengths in black. I'd like 48" or so, I think, and that's cheaper in the galvanized lengths. Can I spray it black with any kind of paint that will hold up to the heat and weather?