I've had a problem with a Buderus furnace installed in Oct98 - my
burner continuously soots up and parts suffer heat damage. A new
technician with our oil company told us that Buderus specified Direct
Vent for the system in the late 90s, but has since recommended Chimney
or Power Vent construction to adress the problem I'm having.
Apparently, chimneys cost more, but power vents require overhaul every
few years. Any more pros and cons for the two solutions?