HEATER INSTALLATION & HEATER REPAIR IN SAN DIEGO, CA.
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Simply put, a heat pump is a device that uses a small amount of energy to move heat from one location to another. Not too difficult, right? Heat pumps are typically used to pull heat out of the air or ground to heat a home or office building, but they can be reversed to cool a building. In a way, if you know how an air conditioner works, then you already know a lot about how a heat pump works. This is because heat pumps and air conditioners operate in a very similar way.
One of the biggest advantages of a heat pump over a standard heating ventilating and air conditioning (HVAC) unit is that there’s no need to install separate systems to heat and cool your home. Heat pumps also work extremely efficiently, because they simply transfer heat, rather than burn fuel to create it. This makes them a little more green than a gas-burning furnace. And they don’t just heat and cool buildings. If you’ve ever enjoyed a hot tub or heated swimming pool, then you probably have a heat pump to thank. They work best in moderate climates, so if you don’t experience extreme heat and cold in your neck of the woods, then using a heat pump instead of a furnace and air conditioner could help you save a little money each month.
To understand why hydronic heating is so effective it is important to understand how heat transfer takes place. The transfer of heat occurs in three ways:
Conduction – This is the movement of heat through objects that physically touch, where heat moves from the warmer object to the colder. Standing barefoot on a beach with hot sand or a cold kitchen tile floor are good examples of this process. Density affects an objects ability to be conductive, which is why liquids are much better conductors than gases. This is the reason why we get colder much faster immersed in 60 degree water, as opposed to standing in outside air temperatures that are the same.
Convection – This occurs when fluids or gases transfer heat while they are being circulated from one area to another. Traditional heating systems that use forced air are perfect examples of this type of heat movement. Just picture the warm air that flows out of the vents in a room to understand this process. Unfortunately, air and other gases, as mentioned above, are poor conductors of heat.
Radiation – Thermal radiation is heat that travels in invisible waves through empty space. It is not something that can be blown away by the wind or moved. It is simply absorbed by the person or object that is in the path of the beam of energy, and is a far more effective means of transferring heat.
Hydronic heating works so effectively in keeping your family and home warm over conventional forced air systems because it utilizes conduction and radiation in heat transfer along with a superior conductor of heat in the form of a liquid. On the other hand, forced air heating relies solely on convection and air. Air is such a poor conductor of heat that it is often used as a means of insulation, as can be seen by its use in between the panes of energy efficient windows.
Drains:Drainage systems do not depend on pressure, as supply systems do. Instead, waste matter leaves your house because the drainage pipes all pitch, or angle, downward. Gravity pulls the waste along. The sewer line continues this downward flow to a sewage treatment facility or a septic tank.
While the system sounds simple, there’s more to it, including vents, traps, and clean outs. The vents sticking up from the roof of your house allow air to enter the drainpipes. If there were no air supply coming from the vents, wastewater would not flow out properly and the water in the traps would need to be siphoned away.
Traps are vital components of the drainage system. You can see a trap under every sink. It is the curved or S-shape section of pipe under a drain. Water flows from the basin with enough force to go through the trap and out through the drainpipe, but enough water stays in the trap afterward to form a seal that prevents sewer gas from backing up into your home. Every fixture must have a trap. Toilets are self-trapped and don’t require an additional trap at the drain. Bathtubs frequently have drum traps, not only to form a seal against sewer gas but also to collect hair and dirt in order to prevent clogged drains. Some kitchen sinks have grease traps to collect grease that might otherwise cause clogging. Because grease and hair are generally the causes of drain clogs, traps often have clean-out plugs that give you easier access to remove or break up any blockage.
Since a drainage system involves all of these components, it is usually referred to as the DWV: the drain-waste-vent system. If water is to flow out freely and waste is to exit properly, all components of the DWV must be present and in good working order. Examine the pipes in the basement or crawl space under your house to help you understand the system better.
A wall furnace is a type of gas or electric furnace designed to heat a single room. Most home furnaces are attached to ducts that pull cool air out of the house and carry warm air in. The wall furnace differs from these primarily in that has no ducts, and pulls cool air out and pushes warm air directly into the room.
Gas wall furnaces: Wall furnaces have a single blower fan that pulls air in through one vent, past the heating system and out through a second vent. In some furnaces systems, the air is pulled into a vent at the top of the unit and out through the bottom, in others the air circulates in the opposite direction. In a gas wall furnace, the air is heated by a heat exchanger. Hot gas from the burners flows in tubes past the supply air, which gathers heat from the gas. The burnt gas is then vented through a small chimney to the outside.
Electric wall furnaces: In electric wall furnaces, the air is blown directly onto electric coils. The coils are resistors–materials that resist the flow of electricity. When an electric current is run through them, they become very hot, warming the air. Electric wall furnaces have both advantages and disadvantages compared to gas ones. They tend to be more expensive to run, but they are much easier to install, since they do not require a chimney or a gas line.
With a natural gas, forced air heating system, gas is mixed with air inside a burner and ignited inside the combustion chamber. A blower pulls cool air in from the rooms through air ducts in the furnace. The air is heated by passing over a heat exchanger connected to the combustion chamber. Warm air then flows back into rooms through ductwork. Exhaust gases from the burners are vented outside through a flue through the roof, or with some models, through a side wall vent.[/accordion][accordion title=” Oil Furnace” style=”default-style”]An oil fired furnace operates in much the same way, except the oil is atomized, or turned into a fine mist, and burned. Air absorbs the heat in the exchanger and a blower sends the warm air back into the rooms through ductwork. Emissions from the burners are then vented outside.
Some homes are equipped with gravity furnaces — typically in basements — which use central heating, but not with forced air and blowers. Instead, the heat naturally rises and heats the rooms through ducts.
Electric Furnace:An electric forced-air furnace uses a blower unit to blow air over electrically-heated coils. The warm air is then distributed through the home through ducts. These units can be used with heat pumps or central air conditioners.