I am about to replace my 18-year old sidewall venter (for the furnace
and water heater).
This replacement was imposed on me since when the plumber replaced an
18-year old leaking water heater, he replaced it with a water heater
requires a venter stronger than the existing TJERNLUND
HSUL-1. I say "probably", because the plumber himself admits that he
doesn't know why the water heater keeps shutting off by the safety
thermocouple switchs next to the "draft hood".
So, is it true that all new water heaters require more powerful
venters? (one hint that I received was that the vent in the new heater
is WIDER the vent in the old heater - 4" diameter vs. 3").
If so (which means I have no choice but shell out extra $$$ to buy a
new venter), could someone recommend a QUIET sidewall venter? What
about an EXTERNAL venter that can withstand extreme weather (New
If not, could someone please suggest brands/models that can work with
the TJERNLUND HSUL-1 (http://www.tjernlund.com/gassidewall.htm ) ?
Please reply to this newsgroup, as my email address is not valid (to
Many thanks in advance,