The How and Why of Heat Pumps

The term “heat pump” is frequently used in reference to a heating and air-conditioning system, but not every homeowner is familiar with what a heat pump is, or what it does.  In the simplest definition, a heat pump is an air conditioner that can reverse its operation to move heat into the house, instead of out.

The movement of heat

Most everyone is familiar with what an air conditioner does.  It creates cool air, which is then circulated through a house’s ductwork by the furnace or air handler.  But strictly speaking, an air conditioner doesn’t “make cold,” it “gets rid of heat.”

The refrigerant that Betlem Residential puts into an air-conditioning system circulates back and forth between the air conditioner outside, and the coil inside, gathering heat as it goes.  Once that heat gets outside the home, the air conditioner disperses it.

Standing next to an air conditioner, you can feel a steady stream of warm air coming off of it. This heat isn’t generated by the air conditioner’s motor or fan; it’s the heat that was previously in the house, being vented into the atmosphere.

The heat pump difference

When a heat pump operates during warm weather, it performs exactly like an air conditioner.  It gathers the heat that’s inside the house, and vents it outside.

When cold weather arrives, however, the heat pump is able to reverse its operation. It gathers heat from the outside air and moves it inside to warm the house.  Because even when the outside air feels cold on the skin, it still contains enough heat for the heat pump to gather and move inside.

Why select a heat pump?

The decision to choose a heat pump or a furnace for a home has to do with the climate in which the home is located. Heat pumps typically work better in warmer southern climates where winters aren’t too harsh. Since the air doesn’t get very cold, a heat pump can gather enough heat during cool weather or cold snaps to keep the home comfortable.

In northern climates that have colder winter weather, there is usually not much heat present in the air for a heat pump to collect.  And even if there is some heat present in the outside air, it may cost a lot of electricity for the heat pump to run long and fast enough to collect it.

For that reason, homes in northern climates typically elect to use a gas furnace  or oil-burning furnace for warmth.

Dual-fuel systems

For homes located in mild or moderate climates, a heat pump can be paired with a gas furnace to create a dual-fuel system.  In this configuration, you enjoy the best possible balance between comfort and energy efficiency.

In cool weather, when the seasons transition from summer to fall, the heat pump in a dual-fuel system keeps the home warm.  Because electricity is typically cheaper than gas, this means more energy-efficient comfort.

When winter arrives and the weather becomes colder, it would take substantially more electricity to draw in enough heat to keep the home warm.  So the dual-fuel system switches from the heat pump to the gas furnace to provide warmth.

The most energy-efficient warmth, every time

The system will continue to switch back and forth automatically between the electric heat pump and the gas furnace, based on whichever is most energy-efficient for the current weather.

The switching point is preprogrammed by Betlem Residential when the system is installed.  Since the switch point is based on prices of electricity and gas in the area in which the home is located, this allows customized energy savings.

To get the energy-conscious advantages of a heat pump in your home, or to discuss the year-round advantages of a dual-fuel system, please contact Betlem Residential.

It was warm just a minute ago…

Prepare your home for Fall’s unpredictable cold snaps.

Summer was great while it lasted, but now the colder weather is on the way.  In Fall, the temperatures can drop at a moment’s notice.  Help keep your home consistently comfortable with these helpful Fall tips for fighting unexpected cold snaps.

Don’t let cold walk through the front door

Doors are great for people and pets.  Unfortunately, cold will also try to sneak in every time a door is opened. And it will try to force its way in through leaking seals around your doors even when they’re closed.  Replace worn or insufficient weatherstripping to preserve the barrier between cold and comfort.

Don’t let messy weather walk all over your house

When cold weather hits unexpectedly, the change in temperatures can often bring rain.  Compound that with the large assortment of leaves on the lawn, and you have a recipe for a dirty floor.  Try playing a mat inside the front door to help keep rain, leaves and even unexpected snow from being tracked all throughout your home.

Make sure your furnace is in shape

The best time to repair or maintain your furnace or heat pump is before you really need it.  Schedule an appointment with the trusted HVAC professionals at Betlem Residential to get a system checkup, to make sure you’re squared away before it becomes an emergency.

Performing a system check will also make sure your furnace, air handler, heat pump or air conditioner are all ready for the up-and-down temperatures that Fall can bring, as the weather goes back and forth between wet, dry, hot and cold.

Get out the caulking gun

Small holes can mean small air leaks.  And small air leaks are all it takes to let the warmth inside your home escape into the wild.  Caulk small holes and cracks yourself, or find a local handyman to give you a hand. Pay close attention to areas around doors and windows, where weathered wood can start to break down.

Clear the way for melting water

Fall is a great time to clean gutters and downspouts.  By creating a clear path for melting water to escape later on in winter, you can prevent the formation of ice blockages that can weigh down gutters and damage shingles.

Let your furnace breathe

Your air handler or furnace is going to be working overtime as the weather gets colder.  Make sure it has unrestricted airflow with a clean furnace filter.  Drier winter weather can also produce more dust, so checking your filter now will help keep your air cleaner as the seasons change.

Don’t get hosed

Before the cold weather arrives, it’s smart to disconnect your hoses from outside faucets.  If they’re connected during freezing temperatures, the ice inside can expand and cause damage to the hoses and even your pipes.   For an extra layer of protection, shut off the water supply to each faucet, drain the pipe and add an insulated faucet protector to hold in heat and stop ice from forming.

It’s the humidity

If you have a whole-home humidifier, Fall is the perfect time to check the pad, and replace it if necessary.  That way, you’re ready to fight off static shocks and damage to your furnishings before they start.

Replacing your A/C? Consider a home comfort system.

After a long, distinguished career, your air conditioner is ready to retire.

You’ve shared a lot of summers together, but the inefficiency, high temperatures and uncomfortable indoor humidity have made it time to say goodbye. Don’t think of it as a hassle, think of it as an opportunity.

Replace the entire system, or just one part?

Anytime you need to repair or replace a part of your home’s heating and air-conditioning system, ask yourself a few questions. Are you spending a lot on repairs on a regular basis? Is your system more than just a few years old? How high are your energy bills? A new system may be a smart decision for many reasons.

It doesn’t have to be old to be inefficient.

With the continuing advancement of home comfort technology, equipment is becoming more energy efficient. A new system may offer you substantial energy savings even if your current system is only a few years old.

Balanced performance.

By replacing your entire system, rather than just a single component, you get equipment that’s been designed to work together. Because of this compatibility, you’ll enjoy greater energy efficiency and optimized comfort.

It’s just like replacing a flat tire on your car. Using one tire of a different size would reduce the performance of the entire vehicle.

Know the parts of a home comfort system.

When you understand how a home comfort system works, it’s easy to understand why a matched system can offer greater energy savings and comfort.

The furnace or air handler.

The furnace or air handler is the center of the system, almost always found indoors. It circulates heated or cooled air all year long.

The air conditioner or heat pump.

Found outdoors, the air conditioner or heat pump connects to the furnace or air handler to cool air in the summer and, in the case of a heat pump, warm air in the winter.

The thermostat.

The brains of the entire operation, the thermostat coordinates heating and cooling based on the temperature you set indoors. Programmable thermostats allow your system to heat or cool on a schedule, saving energy when you’re not home.

Indoor air quality.

For even healthier, more comfortable air, an effective air cleaning system is a must.

Help is here when you need it.

There are many resources out there to help you decide whether to repair or replace. The more you know, the better a decision you can make. Call Betlem Residential Heating & Air Conditioning at 271-COOL(2665) and we will go into detail about every aspect of your decision, helping you make the right choice for greater energy efficiency and comfort. Find out all you can, because replacing your system may be the best decision you’ll make all summer.

7 things to look for in a home comfort system

When it’s time to replace your home comfort system, it’s important to consider what a newer system can offer. Here are seven items to consider when purchasing an HVAC system:

1. Reliability

Chances are, your heating and cooling system is the most expensive equipment you will purchase for your home. That’s why it’s important to choose proven products from a reputable manufacturer.

2. Efficiency

A new ENERGY STAR®-labeled system, when properly sized and installed, can save you up to 30% on your annual heating and cooling costs.* Plus, it may qualify you for utility rebates** in certain regions. To ensure your system is installed properly, choose an air cleaner to match your furnace or air handler. That way, you can have peace of mind knowing your system is working to capture small contaminants in every room of your home.

3. Quiet operation

The sound of a standard furnace can be as loud as 100 decibels, comparable to the sound of a kitchen garbage disposal! Air conditioners can produce sounds as high as 80 decibels. Look for technologies and features that help keep operating sound at a comfortable level.

4. Consistent temperatures

With a typical furnace or single-speed air conditioner, indoor temperature can vary as much as seven degrees from the thermostat setting. A properly installed programmable thermostat, though the use of pre-programmed settings, can save you about $180 every year in energy costs. Variable speed and/or two-stage systems give you the assurance of precise temperature control*.

5. Balanced humidity

To maintain proper moisture levels in your home, choose a thermostat that controls both temperature and humidity. You might also consider a variable speed and/or two-stage comfort system and dehumidifier.

6. Proper airflow

A typical furnace motor runs at one speed and circulates a constant volume of air, so it responds to changing comfort demands by repeatedly cycling on and off. This frequent cycling increases air stratification and stagnation. For optimal air circulation, choose a variable speed model.

7. Healthy air

One of the best ways to combat indoor pollution is to attach an air cleaner to your furnace or air handler. That way, you can have peace of mind knowing your system is working to capture small contaminants in every room of your home.

*Source: www.energystar.gov
**Check with RG&E about rebates in our area.