Determine the direction in which the heated air flows or is discharged from the furnace. It will either be an Upflow, Downflow or Horizontal Model. (The diagram
to the right shows these models in some of their typical applications.)
Please Note: Multi-positional
style furnaces are designed for ALL installation applications and required
minimal conversion. Selecting The Furnace TYPE The Type of the furnace is determined by the fuel source that runs or operates the furnace.
Select either Natural Gas, LP Gas (Propane), Oil or Electric. For Natural Gas or LP (propane) fired furnaces, choose between an 80% Standard Efficiency Furnace or a High Efficiency 95.5% Furnace. Forced Air Electric Furnaces are also available, as well as 80% Efficiency Oil Fired Furnaces. You can refer to an estimate or proposal from a local contractor, refer to the size of your existing system that you may want replaced, or use the sizing estimation chart listed with each furnace type within this web site.
A properly sized furnace will ensure your comfort. Therefore, it is important to never undersize. Always go to the next larger size if necessary.
Oversizing by more than 20% can negatively affect the efficiency, and the operation of a furnace.
Please Note: When sizing equipment for
mobile home applications, refer to the data plate located in the electrical
panel or kitchen cabinets. For further assistance, contact Hamilton's
customer service department. |
 | | Upflow - In basement with upward flow Upflow - In closet/utility room with upward flow Horizontal - In attic with either side flow Horizontal - In crawl space with either side flow Downflow - On
slab floor or crawl space with downward flow
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