IERNA's Heating & Cooling Blog : Posts Tagged ‘Heat Pump’

Will a Heat Pump Heat My Home Sufficiently?

Monday, January 11th, 2016

Living in this part of the country obviously means that our winter weather is extremely mild when compared to that of the summer season. This does not mean, though, that you can afford to overlook how important it is to have a good heating system installed on your property. Temperatures can and will drop below comfortable levels, and you must be prepared for this when it happens. That being said, though, it is understandable that you may not want an entirely separate heating system installed in your home. That is why using a heat pump in Tampa, FL makes so much sense. Read the following information, and be sure to schedule service with IERNA’s Heating & Cooling if you decide that a heat pump is the right option for your home.

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Is a Heat Pump a Wise Investment?

Monday, June 22nd, 2015

Every HVAC system has its pros and cons. There is really no such thing as one truly “perfect” system. Surely, though, there is one which is a great fit for your home, your usage habits, and your user preferences. Many homeowners find that the heat pump suits their demands perfectly, or as near to it as they can get. While the heat pump may not be the household name that a central air conditioner is, this type of system has really caught on recently. If you think that using a heat pump in Tampa, FL may be right for your home, contact a member of our team today. You can count on IERNA’s Heating & Cooling to install and service your heat pump properly every step of the way.

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How Does a Heat Pump Provide Heating in Cold Temperatures?

Monday, December 2nd, 2013

Heat pumps operate on the same principle as a standalone air conditioner: they use the cycling of refrigerant to move heat from one location and put it in another. During hot weather, the direction of the heat exchange moves from the indoors to the outdoors: the heat pump takes heat from inside a home and places it outside. During cold weather, the direction switches (thanks to a reversing valve), and the heat pump removes heat from outdoors and puts it indoors.

But wait a minute, you might think, how does that work? How can a heat pump provide heat from the outside during cold weather? We’ll explain a bit in this post. But if your heat pump ever starts to struggle with giving you sufficient heating in Trinity, FL, call up our repair experts at Ierna’s Heating & Cooling—24 hours a day, 7 days a week—and they’ll solve your troubles.

Heat pumps can do the job in Florida weather

The truth about heat pump operation is that they do have trouble extracting heat from the outdoors when the temperature drops to frigid levels. Unless the outdoor temperature has reached absolute zero (and that would be bad news, but thankfully is scientifically impossible), there is some molecular motion occurring that produces heat, and so the heat pump has something it can extract.

But when the thermostat drops below freezing, the amount of ambient heat available for the heat pump to extract becomes so low that the heat pump will begin operating inefficiently. For this reason, people who live in regions of the country that experience harsh winters need to have back-up systems like a propane-powered furnace to assist the heat pump.

However… you don’t live in one of those icy states. You live in Florida. And Florida is one of the best places in the country to have a heat pump installed. They provide effective air conditioning all through the long summers (and help remove humidity from your indoor air) and rarely have to worry about a below-freezing day during the heat.

You should definitely place a heat pump high on your shopping list of systems to install for your heating in Trinity, FL. If you already have a heat pump working for you, make sure it gets proper repairs and maintenance. Ierna’s Heating & Cooling can handle all your heat pump needs with our NATE-certified technicians.

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Why Will My Heat Pump Only Blow Cold Air?

Monday, November 25th, 2013

For comfort all through the year in Florida, a heat pump offers benefits that few other systems can match: effective air conditioning during the long summers, and the right amount of heating during the short and mild winters.

Since you expect a heat pump to act as both an AC and a heater, it’s a serious problem if it stops doing one or the other. If your heat pump is only blowing cold air, you need to look into it to see if it requires repairs from a professional company like Ierna’s Heating & Cooling. If you can’t get your heat pump to give you warmth when you need it, call on us for excellent heat pump repair in Trinity, FL.

What’s wrong with my heat pump?

Here’s something to keep in mind when dealing with any problem with your heat pump: it uses the same process—heat exchange through cycling of refrigerant—for both heating and cooling. To change from one to the other, the heat pump alters the direction of the refrigerant’s flow. If either the heating or cooling function fails, it may indicate a problem with the system’s ability to change the direction of the flow of refrigerant.

First, however, make sure you have the thermostat set correctly. See that you have it turned to heating and not cooling mode. Check over the programming: perhaps you have accidentally set it to turn on at too low an indoor temperature and it isn’t receiving the signal to switch over to heating. The thermostat may also have a miscalibration, which means it will sense incorrect temperatures and not switch to heating.

However, if the thermostat appears to be working accurately, then the likely reason the heat pump is stuck in cooling mode is that the reversing valve inside its cabinet is broken. The valve is what makes a heat pump different from a standalone air conditioner: it changes the flow of the refrigerant. The valve is either in a relaxed or excited state; an electric current changes it from one to the other. Whether the excited state turns the heat pump to heating mode or the relaxed state does depends on individual manufacturers. However, any failure of the valve will keep the heat pump locked in one mode.

It needs the training and tools of a professional in HVAC repairs to replace a broken reversing valve. If you think you need to have the reversing valve in your heat pump replaced, call Ierna’s Heating & Cooling. We’ll send one of our NATE-certified technicians to give you the heat pump repair in Trinity, FL that will put your system back to the heating mode you want for the rest of the winter.

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What Is the Reversing Valve in a Heat Pump?

Monday, November 11th, 2013

Whenever we describe the operation of a heat pump to our curious customers at Ierna’s Heating & Cooling, we always start by emphasizing the similarity between a heat pump and a stand-alone air conditioner. Because a heat pump essentially is an air conditioner. Air conditioners cool homes by moving heat from inside and transferring it outside. This process is called heat exchange. A heat pump operates from the same principle and mostly the same mechanisms: it moves heat from one place and puts it in another. However, a heat pump can change the direction of heat exchange, so that during cold weather, it moves heat from the outdoors and puts in inside your home. This is why a heat pump in Lutz, FL is such a fantastic option for your home comfort: you get a heater and an air conditioner in a single unit.

However, we have to emphasize the “mostly” part when we say that a heat pump uses “mostly the same mechanisms” as an AC. A heat pump has a few extra parts that allow it to reverse the direction of heat exchange. It needs another expansion valve, and it needs a reversing valve.

The reversing valve

In a heat pump, a reversing valve controls the direction of the flow of refrigerant. Refrigerant is the chemical mixture that allows for the heat exchange to occur. If the refrigerant flows in a different direction, it causes a switch in the function of the indoor and outdoor coils, and this changes whether heat leaves or enters your house.

The reversing valve sits on the refrigerant line, and has two states: energized or relaxed. When a current is applied to the reversing valve in the relaxed state, it becomes energized and switches the flow of refrigerant. Whether the energized state produces heating or cooling is something the manufacturer sets and isn’t shouldn’t concern the consumer.

In fact, consumers shouldn’t concern themselves with the reversing valve at all: if it fails, only an expert technician can replace it. If your heat pump has lost the ability to do half of its job, then the problem may involve the reversing valve or another malfunctioning component—and you’ll need an HVAC specialist like those at Ierna’s Heating & Cooling to figure out which and make the proper repairs and adjustments.

Heat pumps are superb ways to get comfort in Florida weather. You don’t want your heat pump in Lutz, FL to fail at one of its tasks, whether it’s cooling or heating. Contact Ierna’s Heating & Cooling when you detect trouble with your heat pump, and whether it’s a faulty reversing valve or another problem, we’ll fix it for you so you enjoy year-round comfort.

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