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Does the unit need to be mounted near an outside wall and if you do have to vent it through the roof, how complicated — and expensive — will that be? How far does electric wiring or gas pipes have to be run? Possibly the most significant factor to consider before choosing a heating unit is how much it costs to run it. You must consider three things: 1.
The amount of energy the heater consumes; 2. The cost of the fuel that it runs on. Energy consumption in BTUs and efficiency ratings can often be found on a tag or sticker on the heater itself see photo, left. Typically, BTU ratings for heaters are based on the amount of energy going into the heater: the useful heat they actually produce is almost always less, thanks to the laws of thermo- dynamics.
A lower efficiency heater may be inexpensive to buy, but may cost far more to operate in the long run than pricey, high- efficiency models which may quickly pay for themselves over time in lower fuel costs.
Like the cost of gasoline, the prices of various heating fuels — electricity, natural gas, propane, cords of firewood, etc. Per BTU of energy produced, electricity costs more than propane, and propane costs more than natural gas. The U. Energy Information Administration has prepared a Comparison Calculator that can be downloaded.
See chart, below. The calculator provides web links for current pricing. It provides a very handy and accurate way of estimating and comparing operation costs for most conventional heating systems gas-fired furnaces, fuel oil boilers, wood stoves, etc. One factor that can have a profound effect on heating costs is how well a shop is insulated and sealed.
Predictably, the better usually thicker the insulation is in the ceiling, walls and floor, the fewer BTUs it takes to keep the shop warm. Double- or triple- glazed windows and skylights reduce heat loss, and good weatherstripping around doors and windows keeps cold air from coming in garage doors can be particularly hard to seal. Unfortunately, many types of heaters pose serious safety problems in a woodshop: ventilation, combustion and fire, and danger of accidental burns are all issues to consider before choosing and using a heater.
The majority of heaters that burn with an open flame wood stoves, gas wall heaters, etc. Un-vented models expel combustion gases that are noxious or even life-threatening see the section on gas heaters. The exposed heating elements used in electric heaters also have the potential of igniting wood dust, chips, volatile finishing vapors and other combustibles and causing a devastating fire or, in very rare cases, an explosion.
This danger is even greater in shops that lack good dust collection systems. Consider these threats seriously, especially if your shop is attached directly to your home. Heaters with exposed surfaces that become very hot to the touch electric portables, radiant heaters, etc. Undersized or frayed power cords are a major cause of fires, injuries and deaths associated with space heaters.
If your schedule has you hitting the shop every day at 8 a. And any electric or gas heater with a built-in or remote thermostat will keep the shop temperature comfortable all day and saves you the hassle of turning the heater off and on as the room temperature varies.
By choosing a lower setting, a thermostatically- controlled heater can also keep the shop warm enough to prevent glues and finishing supplies from freezing overnight.
Running any heater in the shop tends to decrease the relative humidity of the air. Forced-air heaters, such as unit heaters, can increase shop dryness rapidly enough to cause wood shrinkage problems, such as surface checking.
Conversely, portable and vent-free gas heaters can increase shop humidity, since they produce water as a byproduct of combustion. How much water? A 30, BTU gas heater burning for four hours puts nearly a gallon of water in the air.
Although the added humidity allows the air to carry Used Woodworking Machines In Kenya Kit more heat and keeps it from feeling dry, too much moisture can rust tools and can cause finishing issues. You can remove excess moisture with a portable dehumidifier, or add moisture back into the air with a humidifier or, in a small shop, by leaving one or more open pans of water lying around. When it comes to heating systems and appliances, there are many, many options, including: gas furnaces, oil- burning boilers and radiators, wood stoves, pellet stoves, propane heaters both built-in and portable , solar walls, radiant floor heaters, hot- water unit and baseboard heaters, portable electric space heaters, electric unit heaters and mini-split heat pumps.
The details of other types of heating systems just get too complicated for an article of this length; for more information and recommendations, consult your local HVAC contractor. Electricity provides one of the easiest ways to provide heat in a workshop. Johnstones 2. Deck Board 2. Gazebo with nets 2. Gardman Seed Mix This website uses cookies to improve your experience.
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