The YORK Diamond 90 can reduce your heating
cost. It has an electronic ignition system and inshot burner that
produces heat very efficiently. Then a primary heat exchanger
made of top grade aluminized steel and a secondary heat exchanger
made of high grade stainless steel capture almost every BTU of
that heat. Then the direct-drive blower quietly sends the heat
throughout the home. Warranty: Lifetime limited
warranty on both heat exchangers. 5 year limited warranty on all
other parts.
The
Rheem Criterion II is efficient and compact. With its two stage
gas valve and burner keeps you comfortable and your energy bills
low. Most of the time the Criterion II runs at 70%. Only on the
coldest day will it run at 100%. It also has direct spark ignition
eliminating the need for a standing pilot. And for added safety
during operation, a remote flame sensor constantly monitors the
burner flame to ensure that it is burning. Warranty: 20 year limited warranty
on heat exchanger. 5 year limited warranty on draft inducer and
integrated furnace control
The Rheem Classic 90 Plus is a high efficiency single stage furnace.
Both the primary and secondary heat exchangers are made of stainless
steel. It has a direct spark ignition at the in-shot burners which
are shutter free and require no adjustments to regulate the air/gas
mixture. Warranty: Limited lifetime
warranty on primary and secondary heat exchangers. 5 year limited
warranty on the integrated furnace control and the draft inducer.
1 year limited warranty on all other parts
Weil-McLain Gas Boiler CGi cast iron boiler incorporates induced
draft combustion, intermittent electronic ignition, and other energy-saving
features to attain over 82% seasonal operating efficiency.