90 Second Guide to Electric Space Heaters



Find the perfect space heater at Sam's Guide to Small Space Heaters

Condensing Boiler vs Geothermal Heat Pump: Cheap Heat Surprise

Many a home owner on the look out for something new to replace an old, inefficient heating system probably knows a thing or two about the exceptional efficiency of geothermal heat pumps. But few people are aware of the new 95% efficient condensing boilers fueled by natural gas.

While a geothermal heat pump’s 350% efficiency far outstrips that of a 95% efficient condensing boiler, higher

Which Is Safer: The Electric Space Heater or Electric Fireplace?

According to the National Fire Protection Assoc. (NFPA) heating equipment was the second leading cause of home fires and home fire deaths.

The heating equipment category includes central heating, fixed and portable space heaters and wood stoves. Of these, fixed space heaters (wall mounted or freestanding propane heaters) accounted for 17% of the fires and 28% of the civilian deaths.

Portable

Green Energy site update

I have enhanced the Green Energy (Eu) website.

If you take a look at the thumbnail in this post, there are two reasons why I changed things.

a) The sidebar on the right hand side contained links nobody was clicking on.
b) As a result of the right-hand sidebar, the actual page content was being squeezed too thin and was forcing certain content and display choices which were always compromises.

It was time to remove that sidebar. With it gone, the whole site has opened up. It looks great.

Infrared heater quality and cost


One of the big advantages of Infrared heating is in the absence of maintenance costs and its massive half-life. Not only does this give an owner considerable peace of mind, but it constitutes one of the big "hidden issues" (and costs) of gas or oil boilers.

The materials used in Redwell Infrared heaters, certainly, are sealed-for-life at manufacture and contain no moving parts. Components used in Redwell Infrared heaters have a life expectancy of 100+ years, giving the heaters at least a half-life of 50 years.

Compare this with a boiler which at the very least requires annual cleaning if not actual servicing of the igniter points, injector or blower. And a boiler's maximum life is only 25 years (quite apart from its massive reduction in energy-efficiency past year 5 which increases its running cost) which gives it a half-life of 12.5 years tops. (Cf our previous post on why you shouldn't just look at the purchase cost of IR Vs boilers when making a price decision).

You'll be replacing your boiler four times for every one investment in your infrared heating system. Leave aside the fact that IR heaters are so much cheaper to run.

Is the surface temperature of infrared heaters dangerous?


In what follows, I can only vouch for the Redwell brand of infra red heaters and not for other brands which may not be as well coated or electrically as stable.

For heaters that are designed to operate within close reach of people then the answer is "these heaters are safe". There is the Redwell Sittingwave heater, which is designed to be sat on, and has an element surface temperature of 65⁰C which is comparable to a centrally heated water-filled radiator.

All other non-ceiling-mounted and non-industrial heaters have an element surface temperature of 95⁰C. Whilst ostensibly this is "too hot to touch", Redwell's mitigation for this is to apply a thermally non-conductive powder coating to the stanless steel casing of the heaters, which enables temporary contact with the unit without scalding. And you can definitely snuggle-up to units like the Free-Standing heater without risk.

Now, in cases where people are immobile or possibly vulnerable in other ways such as in hospitals or in schools, the types of heater recommended and installation instructions clearly indicate that the units should be wall or ceiling mounted and out of reach.

Ceiling mounted heaters - the rolling wave and panel wave - have a surface temperature of 120⁰C and are explicitly designed to be mounted out of both incidental and accidental human reach and carry the appropriate warning labels.

In no case with the above types of heater is there a scorching or fire risk. (For comparison's sake, electric bar fires which do carry significant risk of scorching and fire have a surface temperature of between 525⁰C - 800⁰C).

The Industrial infrared heater is a different kettle of fish, having a surface temperature more akin to an electric bar fire (up to 900⁰C) but this unit has comparable safety considerations to comparable non-infrared units designed for industrial space heating.

So yes, infrared panels tend to be about 30⁰C hotter than central heating radiators. Some IR heaters are explcitly designed to allow you to snuggle-close to them on a cold winter's night, such as the sitting wave and free-standing models. The hotter domestic and office models are designed for out-of-the-way installation - and this is clearly marked - whilst the industrial heater carries the same safety considerations as other industrial heaters.

powered by Blogger | WordPress by Newwpthemes