We recently had an electric heat pump installed in our home (9/2012), prior to this we had electric baseboard heat.
We used our heat at least 3 times after installation with no problem.
On 10/20/12 we had a new septic tank installed.
Several days after the septic was installed we began smelling sewage inside our home. We did everything the septic professionals asked us to do when we told them of the smell (making sure we had no dry traps).
The smell would come and goo and we eventually associated it with smelling when the heat pump is running.
The smell got so bad several times that we shut the heat pump off and closed the vents and covered them with plastic and by the next day the smell would be gone. We would go a dy or two before we uncovered everything and turned the heat pump back on.
The smell is not always immediate but within a few hours of turning the het pump on the smell comes back.
I can't take his smell but can't go without heat. Not sure why to do. Any ideas? Thank you!