Aug 05, 2014 6:01 pm
We are renovating a tiny upstairs bathroom. It's in an attic extension, with no room for ducted heating. It gets very cold in winter, so I'm looking at heating options. The room is approx. 5 sq metres (3m x 2m with one corner cut out). It has a bath in there, so there's only about three sq metres of tiling. If I put underfloor heating (approx. $550 as a kit, $1000 installed) will it just take the edge off the floors or will it make the room warmer? Or I could put in a small Nobo for $400 which I know would heat, but which would take up valuable room, aesthetically and physically.
Also, is there any running cost difference between the two options? I'm assuming each would go on about half an hour before the bathroom was used, and switch off afterwards, so perhaps run twice a day for approx. 3 hours total.
Finally, does anyone have any experience with hanging towels above a Nobo? I'm aware the nobo is supposed to shut off if a towel falls on it. How practical is it to have the two together? (Again, partly dictated by space constraints. If I had undertile heating it wouldn't be a problem and I could do a basic heated towel rail in the space).
Thanks so much!
Re: Underfloor heating - actuallys heat the room? or Nobo? H2
Aug 07, 2014 12:07 am
If you're considering heating for a 5 sqm room, my suggestion would be go with an electric floor heating mat. Underfloor heating in general is always the most aesthetically pleasing as there's nothing in the way, that counts especially when you have only 5sqm in an attic.
Here's a quick calc for you. The Nobo you would most likely go for is the 500W, a decent underfloor mat would generally provide an output of 150W/sqm. So for 5sqm, that's 750W. The underfloor heating & the Nobo run off a thermostat within the room, which would solely depend on what you set the temperature at. The thermostat should be programmed correctly and I'd suggest set it to 20degC and on a timer say between 6am-8am for a morning shower or 7pm-9pm for an evening shower.
Both are electric, both are attempting to achieve the same result i.e. satisfying the thermostat temperature. If the Nobo's heat output is insufficient for the room it may mean it works for longer, which may run up the cost. In general, I'd guess they both equate for running cost.
Don't put the floor heating and Nobo together, that would in my opinion be overkill. I have had experience with electric radiant panels, however we don't install them because our primary business has always remained hydronic as it's the most cost effective solutions. If you ever consider heating for your home or any of your friends do, I'd be happy to provide them various options.
If you'd like any further info please feel free to visit my website on www.liquidtransition.com.au or feel free to send an email to email@example.com
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