Heat and Insulation
The three ways heat travels
What is convection, radiation, conduction?
Where the pressure boundary is
What is the same location as the thermal boundary?
4 types of moisture transport
What is gravity, capillary action, diffusion, and air movement?
The amount of energy required to keep a house at a comfortable level on a cold day
What is Heating Load
A type of heating system that exchanges heat between the house and the ground
Ground Source Heat Pump
The difference between R-Value and U-Value
R-value = measure of thermal RESISTANCE
U-value = measure of thermal TRANSMITTANCE
2 primary types of framing in stick-built homes
What is platform and balloon?
100% relative humidity
What is dew point?
3 different measures that assess the quality of a window
What is U-Value, SHGC, and Visible Transmittance
The material used for exhaust gas piping on high efficiency furnaces
What is PVC piping?
The Second Law of Thermodynamics
What is energy flows naturally from high concentrations to low concentrations?
Air flowing through the soffit vent, running into insulation, and pushing it away from the edges of the house
What is windwashing?
Optimal humidity range IAQ
What is 40-60%?
List something that is part of a Home Energy Score
1. facts about the house's windows, mechanical systems
2. the house's air tightness
3. repair recommendations
The steps of the refrigeration cycle
What is the Compressor, Condenser, Metering Device, and Evaporator
An area of high heat flow compared to an adjacent insulated area
What is a Thermal Bridge?
Compress fiberglass batt insulation and use it as a backer for spray foam
The measure of effectiveness for vapor diffusion retarders
What is perm rating?
The amount of energy in a BTU
British Thermal Unit
the amount of energy required to raise 1lb of water by 1 degree
The efficiency measures for gas furnaces, air conditioners, and heat pumps in heating season
AC - SEER
heat pumps - HSPF
The total R-value of: 2 in. of FG batt + 1 in. Loose-fill Cellulose + 2 in. Polyisocyanurate.
What is page 63?
2 x 3 = 6
1 x 3.7 = 3.7
2 x 7 = 14
6+3.7+14 = 23.7 = R
What must be done before running a blower door test
2. thermostats on heaters and water heaters turned down/disabled
3. ashes in fireplaces removed or covered with damp newspapers
4.fireplace dampers shut
Treatment for a crawlspace in a cold climate
1. Baseload - refrigerator, water heater
2. Peak demand - heating, cooling
A furnace has an input capacity of 115,000 BTU/hr and an output capacity of 95,000 BTU/hr, what is the efficiency?
82.6%