How Does a Heat Pump Get Heat From Cold Air?

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Subtitle: 
The physics of heat pumps isn’t really that difficult to understand

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Cold weather is coming back to Atlanta this week, so let’s talk about heat. An increasingly popular way to heat buildings these days is with heat pumps, even in cold climates. But how do they work?

read more

How Does a Heat Pump Get Heat From Cold Air?

Prime: 
prime

Subtitle: 
The physics of heat pumps isn’t really that difficult to understand

Images: 

Cold weather is coming back to Atlanta this week, so let’s talk about heat. An increasingly popular way to heat buildings these days is with heat pumps, even in cold climates. But how do they work?

read more

Manual J Doesn’t Tell You Equipment Capacity

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Subtitle: 
The amount of heating and cooling your house needs isn’t the only factor in determining the size of your heating and cooling equipment

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Here’s a little conundrum for you. To get the right amount of heating and cooling to each room in your home, you need a load calculation. Rules of thumb don’t work. But if you do a load calculation, the result isn’t the size of air conditioner, heat pumpHeating and cooling system in which specialized refrigerant fluid in a sealed system is alternately evaporated and condensed, changing its state from liquid to vapor by altering its pressure; this phase change allows heat to be transferred into or out of the house. See air-source heat pump and ground-source heat pump., furnace, or boiler you need. It’s only the first step to sizing your system.

Do you know why? Let’s take a look.

read more

Manual J Doesn’t Tell You Equipment Capacity

Prime: 
prime

Subtitle: 
The amount of heating and cooling your house needs isn’t the only factor in determining the size of your heating and cooling equipment

Images: 

Here’s a little conundrum for you. To get the right amount of heating and cooling to each room in your home, you need a load calculation. Rules of thumb don’t work. But if you do a load calculation, the result isn’t the size of air conditioner, heat pumpHeating and cooling system in which specialized refrigerant fluid in a sealed system is alternately evaporated and condensed, changing its state from liquid to vapor by altering its pressure; this phase change allows heat to be transferred into or out of the house. See air-source heat pump and ground-source heat pump., furnace, or boiler you need. It’s only the first step to sizing your system.

Do you know why? Let’s take a look.

read more