I have a customer that has a Dual Force 1000 outdoor boiler that is about 7 years old. He is heating around 5000 sq feet with it.
He is interested in upgrading to a newer boiler but needs to sell this one first. I am not sure how much he wants to get for it but sounded like in the $4k-$5k range.
It is a similar design to Johnson boilers.
It is located in south central Wisconsin. If anyone is interested, I can get more info. It could either be purchased direct from him or I can take it on trade and re-sell it.