A heat pump is the same as an air conditioner, but with one additional feature added. A heat pump reverses its activities on winter days and heats the house rather than cooling it down. What makes heat pumps stand out among different heaters is their heat gain. Today's heat pumps at Zero Degrees Celsius outside return 3kw of warmth for each 1 kW of electricity fed into them. It sounds too good to be true and now begs the question: Why do not we use Heat Pump in India?
Low efficiency used to be the most reasonable. Up to 2006, most heat pumps were based on low-efficiency 10 SEER air conditioners, and they couldn't run at low outdoor temperature. In 2006 manufacturing of new units with but 13 SEER efficiency was outlawed. Virtually overnight, new heat pumps' efficiency increased by almost half-hour and kept rising.
Advantages of Heat Pump
- Heat pumps are used in almost every year-round. Air conditioners are only used for some short weeks of summer.
- The worth difference between heat pumps and air conditioners are changing into smaller and smaller. Ductless units lead the manner. These days ductless heat pumps value only $200 more than their equivalent air conditioners. At this little premium, ductless heat pumps are already a no-brain winner against ductless air conditioners.
- Central air heat pumps may still value $1000 more than an equivalent central air conditioner, but even at this premium, a heat pump is a simple choice instead of an air conditioner if you utilize electricity, propane, or oil for heating.
- "Smart" hydrometers are returning. Here in India, electricity at night and on the weekends can value only 3.2 c per kW. At this value and 300th efficiency, electricity is turning into the energy of choice for heating.
- Heat pumps benefit from global warming. As winters in India are getting milder, heat pumps are getting more profitable.
- No reason to worry regarding carbon monoxide poisoning or fuel (gas, propane, oil) escape within the house.
Disadvantage of Heat Pump
Heat pumps want supplemental heat. This will come from either a fuel-based furnace or an electrical heater. There are two main reasons for this.
- Because a similar system is used for each heating and cooling, the heat pump is limited by the smaller of the two wants - the cooling one. The heat pump's heating capability may not be adequate on the coldest winter days.
- The cold outdoor temperature may also lower the heating capacity of the heat pump to the point where it's to be turned off and backup heat has to be brought in.
Supplemental heat is not as a big a deal because it sounds. A couple of electrical strips can be easily accommodated by the ductwork at a price of a few hundred bucks.
And last, but not least - you can finally get rid of fuel heat within your house. People and fuels do not combine well in the same space.