Weil-McLain boilers are very high-end. Depending on the size, condition and output that you want, the minimum that you can spend on one is about 1500 just for the unit. Some of them go for over three grand.
The cost of any HVAC equipment is regional. It tends to run very similar on a wholesale basis. If you are trying to see if a contractor is charging you too much, you should get multiple bids for the same equipment.
