In summary, ventless fireplaces, while attractive and portable, suffer from a design flaw that may allow dangerous gases to enter the living space.
It pays to be an informed consumer. Gas fireplaces are noted for their clean-burning characteristics. Compared with wood fireplaces, natural gas and propane fireplaces produce much less carbon monoxide and particulate emissions. However, no energy source is completely environmentally friendly.
Natural gas and propane do release some pollutants when burned, primarily nitrogen oxides which contribute to ground-level ozone, or smog and carbon dioxide a greenhouse gas.
They also release significant amounts of moisture into the air. A poorly adjusted gas fireplace can generate incomplete combustion products, including carbon monoxide.
As with other energy-using appliances, it is important to keep in mind that buying an energy-efficient gas fireplace and using it wisely will use less energy and reduce greenhouse gas emissions that contribute to climate change. In recent years, a lot of efforts have gone into making good gas fireplaces. Some excellent units are available that offer a visually beautiful flame, are very efficient and can save energy in your home.
The key features and terminology you will come across when shopping for a gas fireplace are discussed in the following. Your biggest challenge will be sorting through the wide range of models available to select a unit that is as efficient as possible and that suits your particular needs.
The gas burner and simulated logs are contained in a metal housing that fits into the existing fireplace cavity. Zero-clearance gas fireplaces are used in installations where there is no existing fireplace i. The simulated logs and burner are inside their firebox, around which is an inner and outer shell. However, its principal benefit is that it can better withstand higher temperatures associated with sealed units.
Venting is required to remove combustion gasses from the firebox to the outdoors. Three options are available: natural draft venting, power venting, and direct venting.
Many of the gas fireplaces sold today evacuate combustion products using a vertical chimney gas vent , which takes advantage of the natural draft caused by the temperature of the flame hot air rises. These units have a draft hood that requires extra house air to isolate the burner from external pressure fluctuations.
Natural draft fireplaces typically use a B-vent or, in an existing chimney, an approved metal liner that includes a B-vent or a flexible metal liner.
Some gas fireplaces feature power venting, in which an electrical fan assists the venting process. Power venting allows units to be vented with horizontal and vertical flues from locations in a home where a conventional flue cannot be installed.
Coaxial Venting uses two concentric pipes. Collinear venting uses two entirely separate pipes: one to supply combustion air and the other to exhaust combustion products. This method is most often used where there are space limitations when an existing fireplace and chimney have been retrofitted with a gas insert or where long vent distances and cold temperatures make condensation and vent icing a potential concern.
Until recently, most efficiency ratings were steady-state measurements — the maximum efficiency the fireplace could achieve operating under controlled laboratory conditions and after running at equilibrium for an extended period. This measure does not take into account many of the ways in which heat loss occurs in a fireplace. A steady-state rating is comparable to the good gas mileage a car achieves when cruising on the highway, as opposed to the much lower mileage you get in a start and stop city driving.
The best way to determine the efficiency of a gas fireplace is to ask for its Fireplace Efficiency rating based on the CSA-P. Tests using this Canadian standard for measuring annual fireplace efficiency have shown that some units operated in the 30 percent range while the better units ranged from 50 percent to 70 percent.
The EnerGuide rating system provides consumers with the assurance of a standardized method of testing, allowing them to compare different makes and models accurately. The standard assesses all gas fireplaces, whether they are decorative units or are used for space heating. It is an accurate measurement that reflects the overall operation of the fireplace, taking into account its use and performance throughout the entire heating season.
The FE rating is expressed as a percentage; therefore, the higher the rating, the more efficient the unit. The FE appears on the EnerGuide label and is presented in one of two ways, depending on whether the product literature lists only a single model or multiple models. The difference in these types of heat are how the warm. The Blue Flame heater warms the air.
It can be put in a narrow area because the heat rises and warms the area from the ceiling down. These are as follows: 1. No vent-free appliance shall be used in a bathroom. No vent-free appliance, greater than 10, BTU input, shall be used in a bedroom. Some manufacturers do not allow use in a bedroom, period.
With ventless units, though, the flames must run through prescribed holes called posts that largely separate the flames from the logs. Combustion occurs whenever there is a flame, and spent gasses and debris from that combustion must vent somewhere. Ventless gas fireplaces are deemed to operate within the range of safety for cycling combusted gasses back into the home's interior.
By contrast, vented gas fireplaces , which create a dangerously high amount of combustion, vent to the outside; its spent gasses are not returned to the home. Ventless gas fireplaces' safety is a subject of lively debate. Around percent of states allow these units completely, with no restrictions at all. California is the only state that outright bans all manner of ventless fireplaces in every part of the state. In the remaining states, a welter of regulations controls ventless fireplaces based on factors such as areas of the house, population of the city, and altitudes.
Venting any type of combustion is ideal. As a backup, ventless gas fireplaces have a feature called an Oxygen Detection System, or ODS, that automatically turns off the unit if oxygen levels in the room fall below a certain level. A highly effective sensor comes with the fireplace. This device will turn off the gas to a Vent Free Fireplace if the level of oxygen in the room starts to deplete.There always has been a battle between which type of fireplace is better than the other, but the simple answer is, they are all good at what they do; heating. People talk about Vent Free Are vent free gas fireplaces legal in canada and Stoves like they are a bad thing. In this blog post, you will learn why Vent Free Fireplaces and Stoves are not as bad as people think it is. For this reason, they legql made to burn clean and allow the combustion by-product to flow into the room the fireplace is in. There are strict guidelines in place to make sure there is adequate space and oxygen in the room for the combustion process. A highly effective sensor comes with the fireplace. This device are vent free gas fireplaces legal in canada turn off the gas to a Vent Free Fireplace if the level of oxygen in the room starts to deplete. This is one of the many safety precautions taken to ensure the security of these fireplaces. Usually, people want a A quiet place full movie online free reddit Free Fireplace because they want to add an alternate source of are vent free gas fireplaces legal in canada in a single room, but on others like to have one installed because of the cozy feeling it brings into your bedroom or your bathroom. What is a Vent Free Fireplace? If the flame is allowed to touch something like a fake log, this can cause a tiny amount of white soot to expell- not sure if this is a health concern or not but we love. As you know by now, a Vent Free Gas Fireplace is a system that doesn't need venting to operate. For this reason, they are made to burn clean and allow the. With that in mind, a ventless gas fireplace may be just the solution. Easier to install than vented wood or gas fireplaces and capable of warming. I would like to buy a Mr. Heater 30, BTU Vent-Free Heater (as floor in front of my old and in-efficient gas fireplace) and not wall mounted. Vent Free Gas Fireplace | Vent-less Fireplaces Are Safer · 2 days ago. vent free propane heaters are legal in canada at home depot.. ventless propane. Euphemistically called “vent-free appliances” by the gas industry (see ventfree.org), unvented heaters and fireplaces that are and Massachusetts), as did all Canadian provinces except Manitoba and British Columbia. Ventless gas heaters may be legal in your state, but they are illegal in California. Ventless fireplaces are made dangerous by an inherent design flaw. as well as Canada and other countries, have outlawed ventless gas fireplaces due to the too, have outlawed these appliances in states where they are otherwise legal. You could consider installing a ventless gas fireplace instead. The maximum BTU (British thermal unit) allowed for a ventless fireplace is 40, Vent-free gas fireplaces are not currently approved for use in Canada. Three basic types of gas fireplaces are widely available in Canada: inserts,; factory-built fireplaces (zero-clearance units); free-standing. Holes and pins in the non-combustible artificial logs help them fit onto each other in a precise manner. The standard assesses all gas fireplaces, whether they are decorative units or are used for space heating. Zero-clearance gas fireplaces are used in installations where there is no existing fireplace i. Energy Efficiency Regulations Regulatory definition Gas fireplace, a decorative gas fireplace or a heating gas fireplace. Combustion occurs whenever there is a flame, and spent gasses and debris from that combustion must vent somewhere. This is a process of heat transfer where the cool room air picks up heat energy from the fireplace surface causing air currents that transport heat throughout the room. Unique Homes. This document does not constitute part of the Energy Efficiency Act Act or its associated regulations. Your biggest challenge will be sorting through the wide range of models available to select a unit that is as efficient as possible and that suits your particular needs. Not allowed in bedrooms and bathrooms. In addition to relying on convection, some units have a heat exchanger that extracts more heat from the combustion gasses and transfers it to the house. These fireplaces can cause serious indoor air quality and moisture problems, particularly in airtight Canadian homes. The good news is that some new fireplace designs offer a safe, energy-efficient and environmentally friendly alternative to conventional wood fireplaces. These monitor how much oxygen is reaching the fireplace and, if it's too little, will automatically shut the fireplace off before incomplete combustion can create a hazardous situation.