How a Programmable Thermostats Works - Programmable thermostats can save you more than ten percent on your homes utility bills. For that reason a programmable can pay for itself within a few years depending on the type and expense of the type you purchase. I always lean towards Honeywell thermostats simply because I’ve seen their reliability in the field and sometimes ease of use. Among others, you can expect good quality from Honeywell thermostat products. The new, hi-tech style currently out on the market is the Honeywell touch-screen thermostat. (more…)
Have you ever wondered how Heat Pumps work? Heat Pumps can be a very economical way of heating and cooling your dwelling. It depends on geographical location and the cost of electricity in your area. The volatile costs of natural gas, propane, and oil have enabled these conditions. Conditions where it can be cheaper with a heat pump than with fossil fuels. There is a common conception that a heat pump blows cold air.
While this can be true in some cases it is not true. If a heat pump is blowing cold air when in the heating mode then it has a problem. A problem that needs to be corrected. Even when the outside unit kicks into the defrost mode the unit should provide adequate heating.
Heating to heat the zones which it serves. Again, if it is not providing adequate heating then it needs to be looked at for a technical problem. A problem that needs correcting. A well-designed system, working properly and efficiently, can provide competitive and economical heating. (more…)
Geothermal heat pumps use groundwater or water circulated through pipes to exchange heat with the earth. Geothermal versus air-source heat pump systems use the earth’s natural temperature to exchange heat and provide heating and cooling. The temperature of the air varies widely with the weather. Whereas the temperature of the earth is nearly constant.
This makes the use of a geothermal system ideal for heating and cooling. It also costs less in energy use because of the constant earth temperature versus the widely varying temperature of the outside air. Consequently, geothermal systems make sense and can save lots of money in energy use.
Heat Pump Systems - There are different types of Heat Pumps in use in both the commercial HVAC heat pump markets and the residential HVAC heat pump markets. The two main types of heat pumps are the air source heat pumps and the water source heat pumps (or geothermal heat pumps). Within the water source heat pump types there are several sub-categories. (more…)
What is NATE? HVAC Education NATE Certification - NATE stands for North American Technician Excellence and NATE is a certification group that oversees the training, testing, and certification of HVACR technicians throughout North American. NATE is highly respected throughout the HVACR industry and an HVAC technician who achieves NATE certification is considered very knowledgeable and skilled in the HVAC trade or HVAC certification specialty. It is a step up in heating and cooling education for HVAC Techs. (more…)
Heat Pump Components - Heat Pumps are similar to air conditioners with a few extra components. Components added to allow the heat pump to offer both heating and cooling. The two major differences between a heat pump and an air conditioner are the controls and the refrigeration circuit.
While there are many different types of heat pumps and air conditioners the methods and means these two types of heating and cooling systems use are basically the same. (more…)
Heat Pump Types - There are different types of heat pumps available on the market today. A heat pump is an air conditioning unit that cools when the temperature is hot and heats when it is cold. There are many different types of these heat pump systems available. There is the geothermal heat pump. It can either utilize a series of closed-loop water pipes buried in the ground or other methods of heat exchange. This process removes or absorbs heat for heating and cooling.
Air source heat pumps can be configured differently. One type of air source heating will utilize electric heating for backup heating while another may use a gas furnace for backup heating. These types of systems can also be split systems or package units and nearly all share a similar heat pump sequence of operation. A description of the various types of systems and how they work is below in this article on heat pump types. These systems utilize similar heat pump components but differ in how the heat pump works.
HVAC Tip - Did you know the human body produces approximately 250 BTU/h when sleeping? Here is a basic list of the approximate BTU/h produced by the human body for various activities:
Watching Television - 400 BTU/h (any sedentary activity)
Cleaning the house - 700 BTU/h (moderate activity)
Mowing the Grass w/push mower - 1800 BTU/h (heavy activity)
Running a marathon - 2400 BTU/h (extreme activity)
The number of people occupying a dwelling or space is a consideration in the load calculation for sizing air conditioning systems simply because humans do give off heat. BTW, the Matrix over blew the numbers. In the movie Morpheus states humans give off over 25,000 BTU's. Only the author of this website is that hot..............))))))
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There is a common conception that a heat pump blows cold air.
Heat Pump Systems - There are different types of Heat Pumps in use in both the commercial HVAC heat pump markets and the residential HVAC heat pump markets. The two main types of heat pumps are the air source heat pumps and the water source heat pumps (or geothermal heat pumps). Within the water source heat pump types there are several sub-categories. 
