Denver Heat Pump Experts
Heat pumps pose an alternative to central air heating
and cooling systems such as furnaces
and air conditioners
. They have a higher coefficient of performance (energy efficiency ratio) than most other HVAC systems. Many people prefer them for the energy savings alone, though they have other advantages as well. Here in Denver, they are beginning to catch on as people realize the advantages of harnessing temperature differentials to heat or cool one's home.
Similarly to your refrigerator
, heat pumps use electricity to transfer heat from the cool outdoors into your warm house during the winter and conversely move heat from your cool house into the warm outdoors in the hot weather. Since they transfer heat rather than produce heat, heat pumps may provide comparable space conditioning at as little as 25% of traditional heating or cooling appliances' operating costs.
3 heat pump types
Three types exist: air source heat pumps, water, and geothermal (ground source). They absorb heat from the outside air, water, or ground and concentrate it inside one's home, business, or other facility.
Air source heat pumps
The most popular form of heat pump is the heat pump that transfers heat between your house and the outdoor air. Today's heat pump will minimize the heating usage by about 50% compared to electrical resistance heating such as furnaces and baseboard heaters. Also, energy-efficient heat pumps dehumidify better than traditional central air conditioning, resulting in less energy consumption and more warmth in summer months. For several years, air-source heat pumps have been used in almost all parts of the United States, but until recently they have not been used in areas with prolonged sub-freezing temperatures. However, air-source heat pump technology has progressed in recent years to deliver a competitive space heating solution in colder regions.
Also available is a ductless variant called a mini-split heat pump for homes with no ducts. Moreover a special form of air-source heat pump called a "reverse cycle chiller" produces hot and cold water rather than air, allowing it to be used with heating-mode radiant floor heating systems.
Ground source heat pumps and water source heat pumps
Geothermal heat pumps (ground source or water source) gain higher efficiencies by moving heat between your house and ground or nearby water source. While they cost more to install, geothermal heat pumps have low operating costs because they use relatively constant ground or water temperatures. Geothermal heat pumps have several big advantages. They can reduce energy usage by 30%-60%, control humidity, be durable and reliable, and work in a wide range of homes. Whether you need a geothermal heat pump would depend on the size of your lot, subsoil, and landscape. Ground source or water source heat pumps may be used in more harsh climates than air-source heat pumps, and system satisfaction is very high.
Other developments in heat pump technologycall 720-615-6358
Unlike standard compressors that can only run at full capacity, two-speed compressors allow heat pumps to operate close to the heating or cooling capacity at any given time. This saves substantial electrical energy and reduces compressor wear. Two-speed heat pumps also operate well with zone controls. Zone control systems, mostly used in larger homes, use automatic dampers to regulate separate rooms at different temperatures.
Some heat pump models have variable-speed or dual-speed motors on their blowers. These fans' variable-speed controls try to keep air moving at a comfortable speed, eliminating cold drafts, and optimizing electrical savings. It also minimizes full-speed noise from the blower.
Many energy efficient heat pumps have a desuperheater, which recovers waste heat from the cooling mode heats water with it. A desuperheater heat pump will heat water 200% to 300% times more efficiently than an ordinary electric heater.
Scroll compressors are another technology development. A scroll compressor has two scrolls, each shaped like a spiral. One stays stationary, while the other orbits around, compressing the refrigerant by pulling it into ever smaller areas. Compared to conventional piston compressors, scroll compressors last longer and are quieter. Heat pumps with scroll compressors create 10° to 15°F (5.6° to 8.3°C) warmer air in heating mode compared to heat pumps with piston compressors.
Although many heat pumps use electrical heaters as a backup for cold weather, they may also be fitted with supplementary burners. Back-up burners help solve the heat pump issue supplying relatively cool air during cold weather and reduce energy use. Few manufacturers of heat pumps combine both types of heat supply in one box, so these setups are mostly two smaller, side-by-side, regular systems sharing the same ductwork. Half the machine may be propane, natural gas, oil, or even coal and wood.
The energy-efficient HVAC option
Ideally, a heat pump should move 300 percent more energy than it absorbs. A high-efficiency natural gas Furnace, in contrast is around 95% effective. Heat pumps have a high coefficient of performance and can be very cost effective given their economical energy consumption. They are powered by electricity, and can act as heater and air conditioner.
If you need heat pump maintenance, repair, installation, or other services, Tafoya Mechanical can help you anywhere in the greater Denver metro and beyond. We also do:
• Air conditioning repair
• Air conditioning maintenance
• Furnace repair
• Furnace replacement
• Boiler repair and maintenance
• 24 hour emergency HVAC services
• Commercial HVAC