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Tag Archives: geothermal heat pump

2011 Proposed Increase in SEER – EER – AFUE – HSPF


10 SEER units cannot be purchased in the US any longer. The new standard as mandated by the Department of Energy as of January 2006 is 13 SEER. This 30 percent increase in efficiency from 10 SEER requires a change out of the inside coil. In 2011 the Senate is proposing a new SEER and AFUE standard that will be based on where you reside in the USA. The country will be split up into three regions. Northern, Southern, and the Southwestern regions with each region having different efficiency standards. The proposed efficiency standards for each region are as follows:


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Air Conditioner Inverter Review | Heating and Cooling Efficiency


Air Conditioner Inverter Review

Many minisplit air conditioners and heat pumps use inverters for efficiency. Conventional split system air conditioner and heat pumps can now be purchased with inverters for ultra efficient heating and cooling.

Air Conditioner Inverter Review – Many minisplit air conditioners and heat pumps use inverters for efficiency. Conventional split system air conditioner and heat pumps can now be purchased with inverters for ultra efficient heating and cooling.

Inverter air conditioners came to the USA in the form of ductless mini-split air conditioners and were later expanded to ductless mini-split heat pumps. Inverter air conditioners and inverter heat pumps are considered the most efficient air conditioners and heat pumps available on the market for conventional systems and for air source air conditioners and air source heat pumps the inverter air conditioners and inverter heat pumps come close to matching the efficiency of geothermal heat pump systems. In fact some inverter air conditioners and inverter heat pumps beat some geothermal heat pump systems when matched up for efficiency. If it is impractical to drill a well or do trenching for a geothermal system and you want very high efficiency the next best thing is an inverter air conditioner or an inverter heat pump. Of course with any air source heat pump geographical considerations must take precedence as air source heat pumps are not practical in the northern climates for technical reasons unless they are specially engineered heat pumps for operation in the Northern climate region.


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Refrigeration for HVAC | Air Conditioning and Heat Pumps


Refrigeration for HVAC

Air conditioners and heat pumps use the process of refrigeration to provide heating and cooling. What is the definition of the process of refrigeration? Refrigeration is the process of moving heat and depending on whether it is a heat pump or air conditioner and what mode it is in will depend where you are moving the heat. An air conditioner and a heat pump (in the cooling mode) will move heat outside. The evaporator coil absorbs the heat and the condenser rejects the heat.


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Heat Pump Frost and Ice Build Up | HVAC-Troubleshooting


Heat Pump Frost and Ice Build Up | HVAC Troubleshooting

Heat Pump Frost and Ice Build Up – Hi. I noticed my that one of my outside heat pump condensing units was laboring throughout the night. This morning I found ice frost buildup on the heat pump condenser fins. I live in Tucson, Az. It has been colder than normal (below freezing) with a bit more moisture in the air than usual as of late. Can you please tell me what causes this frost ice buildup, and how I go about rectifying? Does this mean that the condenser pump is shot? I’m originally from the Midwest, and have never experienced this before. What should I be doing? Thank you for your help.

Heat Pump Frost and Ice Build Up – The answer……………

It sounds to me like you have a heat pump and this is normal for frost to build up on heat pumps. I would guess that in Tucson they set the heat pump defrost cycle times pretty high as it is dry there. If you have a lot of ice build up on the heat pump then there is a problem with the heat pump defrost controls but if the heat pump frost problem is just intermittent then everything is working fine and defrosting as designed.


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Air Conditioning and Heating Heat/Energy Values – HVAC Technical


Air Conditioning and Heating: Heat/Energy ValuesAir Conditioning and Heating Heat/Energy Values

Heat is energy and when we produce heat we need to use energy in its production. There are natural methods for producing heat without burning or using fuels but these methods are not practical or available to the general populace for residential, commercial, and industrial use. The production heat, whether for residential, commercial, or industrial uses, uses energy and energy costs money. It is thereby necessary to have reliable and proven methods of measuring the amount of heat produced using a specific quantity of energy. Employing these reliable and proven methods we can also use the data to determine the best methods of producing heat for homes, businesses, and industry.


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THURSDAY, July 02, 2015

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HVAC Tips: Helping You Learn

A thermocouple is commonly used in standing pilot gas furnaces and water heaters is technically referred to as a copple element and produces millivolts when heat is applied to the tip. This millivoltage is necessary to keep the pilot valve inside the gas valve open. If the pilot flame goes out, the thermocouple stops generating millivolts. Without the millivolts, the valve closes thus preventing gas from escaping when there is no flame. Thermocouples fail because of oxidation. It is recommended that you keep the pilot lit throughout the year to prevent excess oxidation. The thermocouple can be found in many different types of gas furnaces, gas logs, and gas water heaters. Learn How to Test a Thermocouple with a Multi-Meter

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