Tired of wearing a winter jacket while working? Rather than put progress on hold as the temperature drops, why not make the area more comfortable? One cost-effective method would be to install a unit heater. Designed expressly for the purpose of introducing warmth to work spaces, unit heaters come in a range of sizes and styles, and can be powered by a variety of fuels. Most are relatively easy to install and operate, and can provide you with years of reliable service.
According to Daniel O’Brian, a technical expert here at SupplyHouse.com, “unit heaters are a good fit for large, open, unheated spaces.” Because most models are meant to be mounted on the ceiling or to a wall, you don’t need to give up any square footage that could otherwise be devoted to, say, a grinding machine or a table saw.
Unit heaters are rated, like air conditioners, in terms of British thermal units, or BTUs. Outputs range from a modest 15,900 BTUs to a whopping 400,000 on our site. Most residential applications call for a unit heater on the smaller end of the spectrum. For instance, 30,000 or 45,000 BTUs would suffice in a one-car garage, while in a three-car garage, a 100,000- or 125,000-BTU heater would be most appropriate.
Sizing a unit heater is key. Proper sizing, says O’Brian, “should be done with a full heat loss report,” which accounts for “the construction of the walls, floor, and ceiling, as well as the amount of insulation.” To arrive at a rough estimate, however, you can use a simple formula: After carefully measuring the space, find the approximate BTU rating needed by multiplying the room’s length times width times five (L x W x 5 = BTUs needed).
When it comes to locating your unit heater, there’s a great deal of flexibility, particularly with natural gas-powered models. These can be placed virtually anywhere within the space—on the ceiling, on the wall, or on the floor—so long as there’s ventilation and access to both a gas line and electrical outlet (to power the blower). Meanwhile, electric, infrared, and hydronic unit heaters do not require ventilation, but they do need to be near an electrical outlet, and in some cases they do require a minimum clearance. For example, an infrared heater must be placed at least three feet away from the nearest object and seven feet from the floor.
Gas-powered unit heaters are a common choice, partly for financial reasons. Compared with electric or infrared models, they cost less to purchase (sometimes half as much) and, depending on the utility rates where you live, they’re likely to be less expensive to run. Gas-powered heaters, however, typically operate like a forced-air home heating system, with a blower that kicks on intermittently, sending a blast of heated air through the conditioned space.
No matter what type of unit heater you select, you are going to love being able to keep working, even through the coldest days and months of the year.
This post was written in collaboration with BobVila.com
