How To Get Better Results Out Of Your Gas Patio Heater Regulator
Gas Patio Heater Regulator
It's important to understand how to use a propane patio heater if you need to stay warm during the cold weather. Matthew Griffith, chief of the prevention division at Montreal's Fire Department, says that shoppers should look for products with safety certifications.
It's also essential to make sure that there are no combustible materials are nearby and that the patio heater is correctly attached.
Pressure Regulator
Gas regulators are simple mechanical appliances we use in our homes and cars every day without even giving them a second glance. Their invention, 135 years ago, has changed the way propane and natural gas are used for cooking, heating and welding with oxy-fuel. The fundamental function of regulators is the same, however there are numerous variations. The regulator is based on an element that senses pressure typically a fabric-reinforced diaphragm, which controls the position of the valve plug and restrict the flow of gas.
The diaphragm is linked to the stem of the valve by a rod that runs through the set spring, through the diaphragm before entering the valve. This mechanism detects gas pressure in the house or pipeline and adjusts the position of the valve plug to meet the demand. As the gas usage in the house decreases the pressure between the regulator and the house reduces also. This causes the diaphragm to decrease in size, and then it moves the valve plug closer to the orifice, restricting the flow. As patio heater gas regulator increases in the home the valve will open more, thereby increasing the flow.
When the valve plug is shut, it is held in place by the set spring force until the demand of the house drops, which opens the valve further to increase flow. This process is known as"sizing" and is the fundamental function of the regulator.
When the valve is opened it creates pressure up in the main chamber of the regulator, which is connected to the hose outlet port via a venturi tube (see picture). This pressure is regulated by the adjustment of a handle or screw located on the outside of the regulator. When the screw is turned counterclockwise it increases the pressure. When it is rotated clockwise, it reduces the pressure.
When you are choosing a regulator for your pressure make sure to keep in mind that the maximum and minimal nominal pressures are set by commercial standards, and not the pressure at the supply line. The regulator must be compatible with the hose you are using. Find a hose marked whistle-free. It will have alternating rings of different sizes. This will prevent resonance noises from forming along the length.
Thermocouple
Thermocouples operate on the premise that metals of different composition when in contact at their ends can generate a voltage, even if they are at wildly different temperatures. They are used to identify temperature differences between points in the circuit and convert that information into an electronic signal that can be read by a thermocouple gauge or other instrument. patio heater gas flame offer a number of advantages over more common sensors such as thermistors, for instance, the ability to measure very high-temperatures and to operate in corrosive environments.
The measuring (or hot) junction is created by connecting two metals with different properties at one end, and the other end, known as the reference (or cold) junction, is maintained at a constant temperature. Thermocouples produce small voltages, however, they are passive devices that do not require power to perform their functions. The voltage generated is proportional to the temperature difference between the measuring junction and the reference junction. Thermocouple manufacturers as well as metrology standards organizations like NIST provide tables of reference for the function E (T) Displaystyle scriptstyle e(T) For each particular type of thermocouple.
There are three kinds of thermocouple connections: exposed, grounded and weld. The exposed style of junction protrudes from the protective sheath, and offers the fastest response. In the event of measurements under corrosive conditions it is recommended that a grounded thermocouple be utilized. A welded-wire thermocouple is physically isolated from its sheath with mgO powder. This stops gas or moisture from entering and causing errors.
A thermocouple that is welded comes with the added benefit of being more resistant to vibration. It is recommended to use in harsh environments, and with pressures as high as 3000 psi. A thermocouple that has been damaged is usually caused by a lack in polarity. If the sheath isn't polarized, the two ends of the thermocouple be in a state of discordant voltages at the junction of measurement, which can cause an inaccurate reading and even damage the instrument. A sensor that is not properly calibrated or installed can also cause a faulty thermocouple.
Thermostat
In contrast to electric heaters that need to be wired into the wall gas patio heaters are portable and utilize natural gas or propane cylinders to fuel. Thermostats regulate the flow of energy to these cylinders in order that they don't overflow, but can still provide heat when needed. The thermostat achieves this by measuring the temperature of air that is passing through it. The thermostat can also detect that the room is at a temperature that is comfortable and shuts off the heating.
The most common type of thermostat is one that is digital. It uses a microcontroller that converts a fluctuating electrical resistance into a reading of temperature. It can perform this more accurately than the older mercury switch thermostats, which employed mercury coils with three wires inside that would change according to temperature. This allowed the thermostat to tilt the mercury switch that was connected to an electrical circuit that was used to power an air conditioner or heater by turning it on and off.
A mechanical thermostat is another type. This has tiny cylinders filled with wax that starts to melt when it reaches a temperature, maybe 180 degrees F (different thermostats open at different temperatures). A rod that is connected to the valve then presses into the wax and opens the valve when it's hot. As the room cools down, the wax contracts and the rod is pulled into the cylinder to close the valve.
There are thermostats that can be programmed to change at different times during the day. You can reduce energy usage by setting your heating to turn on and off while you're at work or sleeping, instead of having it always on. You can also set the thermostat to come on earlier, so that your home is an ideal temperature when you arrive back from school or work. Thermostats also often include an option called the heat anticipator that stops the heater from switching on too quickly. This is due to the fact that different areas of the home often attain the temperature set before the thermostat itself.
Pilot Light
While many newer heating and home systems have done away with pilot lights, older homes and furnaces still use them to light the gas in the chamber for burning. If the pilot light ever extinguished, it's important to know how to relight it safely.
A pilot light produces a small flame which heats the thermocouple. The thermocouple produces electricity and keeps the gas valve open. When the pilot flame ceases to burn, the thermocouple cools down and stops producing electricity, closing the valve. Pilot lights are utilized on most propane and natural gas appliances, including water heaters.
To relight the pilot, you first need to shut off the gas in the appliance. You will then need to remove any panels or doors that may be blocking the access to the pilot light. Follow the directions on the front to open the tube for the pilot light. Once you've switched off the pilot, turn the gas valve knob back to "on".
Safety is the main reason for leaving a pilot light on. If it's accidentally extinguished and the gas that's constantly escaping from the pilot light tube could accumulate in your home until a spark from the cigarette lighter or static electricity ignites it and causes an explosion. Pilot tubes are designed to contain an inbuilt cutoff valve to keep this from happening.

A pilot light that is constantly burning is not only dangerous but also wastes energy. Various studies have shown that a pilot light could burn between $7 and $18 of gas per month. This wasted fuel also places a heavier load on the air conditioning system during summer use. Another issue with the pilot light is that it can attract spiders, which could create webs that block the pilot tubes. Additionally, a flame that is constant could release trace amounts the compound mercaptan, which creates the rotten egg smell that is found in natural gas. If you're ever concerned about these issues, think about purchasing a gas fireplace with a remote control or replacing a fireplace with a more efficient and modern-day model.