Green Building Bible, Fourth Edition |
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These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment. PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book. |
Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.
Posted By: VictorianecoI get paid by the insurer to spot dry so that's my approach on this one
Posted By: djhChicken heaters?
Posted By: tonyThe sun is a great ir heater
Posted By: tonyInverse square law for distance but it is likely to have a reflector.
I have been drying screeds for 40 years and only ever use fans Blowing on cold And open windows.
Low cost, simple, sustainable, eco
Posted By: VictorianecoI've got to follow the recommendation of the insurer on this one though.
Posted By: Peter_in_HungaryThe inverse square lawWouldn't that apply to an unreflectored source, radiating equally in all directions? so the (spherical) receiving surface increases as the square of radius away from the source, hence power density decreases likewise. With (assuming lossless) reflector, it all depends on the beam's included angle or rather the beam's area on the receiving surface.
Posted By: fostertomPosted By: Peter_in_HungaryThe inverse square lawWouldn't that apply to an unreflectored source, radiating equally in all directions? so the (spherical) receiving surface increases as the square of radius away from the source, hence power density decreases likewise. With (assuming lossless) reflector, it all depends on the beam's included angle or rather the beam's area on the receiving surface.
Posted By: djhThe area still increases as the square of the distance, though.Approximately. It's only strictly inverse square for a point source.
Posted By: barneyGoing back to the exam question, it's difficult to see just how much advantage that IR on the screed would have in a UK climate in summer in a well ventilated room
Posted By: Peter_in_HungaryThe advantage is that if those paying the bill want an IR heater then they get an IR heater and the provider (Victorianeco) gets paid. If it doesn't work Victorianeco still gets paid and then a discussion can ensue as to how to solve the problem properly.
Posted By: Victorianecothe salts which were of course giving erroneous readingsYou mean their hygroscopicity was pulling moisture from the air, so maintaining a thin damp surface layer? I've recently encountered just a trace of spilt Epsom salts making floorboards damp to touch, causing belief that the roof was still leaking!
Posted By: LFI guess IR heater warms the slab so warming the local air and helping the drying.The temperature of the air isn't all that important, it's the temperature of the surface of the water which matters which you can only influence by warming the slab.