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14 Cards in this Set
- Front
- Back
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List the four styles of heat delivery that are used with boilers |
Radiator convector baseboard or radiant piping |
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Where should a radiator be placed in a room |
On an exterior wall below window |
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If you find a radiator with the balancing valve off will there be water in the radiator |
Yes |
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What is the maximum temperature to set radiant pipe heating |
110 degrees |
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How could you check for water leaking from radiant floor piping |
Turn off the boiler supply water valve turn off the boiler electrical supply and watch for a drop in pressure |
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Why is a tankless coil water heater system called indirect |
Water is heated by boiler water rather than a flame |
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Explain how a sidearm heater is different from a tankless coil |
Sidearm heater is mounted outside the boiler its function is a denticle to a tankless coil |
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Boilers with tankless coil domestic water heaters are inefficient because |
The boiler needs to stay hot all summer |
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Why would you have a mixing valve on a tankless coil heater |
To reduce the temperature to prevent scalding |
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What are two improvements you can make to a boiler to make it mid efficiency |
Add a vent damper and spark ignition |
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What are three possible advantages of high-efficiency hot water boilers |
There's no chimney needed lower fuel cost and direct venting |
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What are some of the design and operating challenges of high-efficiency boilers |
Expensive corrosive complex temperatures may be too low |
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What is the average lifespan of a cast iron boiler |
35 to 50 years |
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What is the difference between a combination system and a tankless coil system |
Combination system uses domestic water to heat the domestic water and the living space |
