Sizing Your Tarm Boiler

One of the most common questions we are asked is, "What size boiler do I need?" Sizing heaters is accomplished by calculating a heat loss. Heat loss generally includes, but is not limited to home space heating demands and domestic hot water requirements.

Calculating heat loss requires the consideration of many factors.

• Your regional design temperature. This is the worst case scenario cold temperature for your area of the country.
• Building insulation. Walls and ceilings are considered separately.
• Number and types of windows.
• Numbers of outside doors.
• Number of outside walls.
• The size of the building expressed as volume.

These represent a sampling of the information required to size a heater properly. Due to the complexity of performing a heat loss calculation properly, we recommend that you contact a qualified heating contractor for a heat loss calculation prior to deciding which of our boilers to purchase.

For your initial general information, we are providing a very basic heat loss calculator. This calculator will give a hint as to the size of boiler that will fit your needs.

NOTE: For "Floor to Ceiling Height," add total of each level of the home. For example, a 2-story home with 8-foot ceilings would have a floor to ceiling height equaling 16 feet.

Please do not use our quick heat loss calculator for final decision making. For more information about sizing your boiler, please contact us. We are here to help.

Locating Your Tarm Boiler

The HS-Tarm boiler is best installed directly in the home. It must be installed on a non-combustible floor. It can be installed using a masonry chimney or a pre-fabricated HT rated All Fuel chimney. When installing a boiler in locations where either the boiler or pipes may be exposed to freezing conditions, pipe insulation and non-toxic boiler anti-freeze is recommended.

"TYPICAL" HS-TARM INSTALLATION

NOTE:

1. Boiler is mounted 8" above floor (on solid concrete blocks) for ease of operation and cleaning.
2. The optional ashhod with sliding top lid, is shown sitting at side of boiler.
3. Optional ashhod being used to catch ash being cleaned out of boiler. Sliding lid is in open position in this photo.