I live in the Boston area and my home is about 3500 to 4000 sf. Well
insulated and good windows.

The gas burner is original and gas bills have been high and climbing
the past few years.

Is it worth investing in a new high efficiency gas boiler?

Is Buderus a good brand?

Does $8500 sound like a ballpark bid?

Also, thinking of adding a a wood stove. Good idea?

Thanks for any help you can provide.