Originally Posted By: psiposs This post was automatically imported from our archived forum.
Have a house with a 6 foot double wall vent exhaust vent pipe in the attic, but the bottom stops about a foot above the floor. There is NO heater etc to connect it to. The pipe penetrates the roof and exist fortnuately to a vented cap, not just open hole.
Aside from bugs and drafting, is there a problem here? The insulation below it wasn’t espiecally dusty or showing signs of damp but is this an issue just being open?
Originally Posted By: psiposs This post was automatically imported from our archived forum.
Its a steep roof anyway so I don’t know if I’d want to walk it even if dry. I used my 16 foot pole with Camera on top to take other photos. With me holding it up I get about 22 feet or so high and can get close ups of things quite well. My own design not spectroscope.
Originally Posted By: lkage This post was automatically imported from our archived forum.
psiposs wrote:
and "B" stands for what?
...the "class" of chimney.
Typically class B chimneys are used for gas appliances and are double walled and need 1' to combustibles.
Class A chimneys are designed to withstand a 2100 degree chimney fire for 10 minutes (In Canada I think 30 minutes is required) and are typically insulated (although triple wall is used too) and need 2" clearance to cumbustibles. Different brands have different abilities to recover after a chimney fire. Expansion and contraction is better than buckling under heat.
Lots of info on chimneys out there. I'm sure others will chime in.
Originally Posted By: dandersen This post was automatically imported from our archived forum.
I had one of these in my inspection today.
The water heater was changed out from gas to electric and the flu abandoned. The realtor asked what that was all about. I replied, the price of natural gas!
I've been finding new construction with electric water heater's where natural gas is present. I question the client. His reply was that his builder said electric is cheaper now    
Originally Posted By: phinsperger This post was automatically imported from our archived forum.
Electric water heaters have a much slower recovery than gas ones. So if you use a whirlpool type bath tub or have a large family an electric water heater probably is not going to fit the bill.