Company Aquatherm Product Manual

-2-
Aquatherm
®
Combo Heaters!
Now you can choose comfortable, efficient gas heat...
without paying a premium or compromising valuable floor space!
Combo Heaters Provide
Solutions, Not Problems!
Sequence of Operation (heating mode):
When space heating is needed, the wall thermostat en-
ergizes a small pump which circulates hot water from the
water heater to the hot water coil in the Combo Heater.
As the fan motor forces cool return air from the home
over the hot water coil, the air absorbs heat from the
hot water and this warm air (105 to 110 degrees) is then
circulated throughout the duct system and into the home.
While circulating through the Combo Heater coil, the hot
water loses only 15 to 25 degrees in temperature and
then returns to the water heater to be re-heated.
Water Heater Requirement
Any water heater sized large enough to accomplish both
functions (space and water heating) will work...no special
water heater is needed! Water heaters used for space
heating will generally require extra gallon capacity and
higher BTUH input. (See “Equipment Sizing”, next page)
When a First Co. Aquatherm
®
“Combo Heater” (air han-
dler) is connected to an adequately sized natural gas, LP,
or oil fired water heater, the water heater becomes a dual
function appliance that can provide comfortable, efficient
space heating as well as hot water for domestic use. And
it doesn’t matter where you live!
First installed in California in 1974, there are now over
a million Combo systems in operation from Canada to
Florida and in both single and multi-family applications.
Problem:
Gas furnaces require flue venting and combustion air.
Solution:
Combo Heaters don’t require furnace flue venting, com-
bustion air, OR gas piping!
Problem:
In multi-family applications, gas furnaces take up more
valuable floor space than electric systems.
Solution:
First Co. Aquatherm
®
Combo Heaters can be used in
any floor plan...and some models don’t take up any floor
space!
Problem:
Gas heat costs more to install than electric systems.
Solution:
Combo Heaters reduce the installation cost of gas by
more than $250
(1)
(1)
“Why Build with Gas Heat in Multi-Family
Construction” - Gas Research Institute (GRI)