Where Should Furniture And Drapes Be Positioned With Heat Registers
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Why are key-heating radiators invariably placed under windows. Surely the rut will escape through the glass?
- THE HUMAN trunk is more sensitive to the temperature of surrounding surfaces than it is to air temperature. We find hot all the same air 'stuffy'. This is why, in cold weather, comfort is more than hands achieved using a source of radiant heat, such as a blazing log fire, in conjunction with a degree of air motion. Discomfort is caused past cold surfaces such equally the glass in a window. Flat console radiators, primarily a source of radiant oestrus, are consequently placed below windows to remainder out the cold surface above. This is of form, a consideration during the twenty-four hours when the glass is exposed to admit light. At night the window tin can be insulated from the room by shutters, blinds or curtains, preferably leaving the radiator exposed. Where the radiator is finned to encourage heating of the air and thus the room past convection the situation does however become more complicated. The warm air rising from the radiator will counteract the tendency for common cold downdraughts to form in front of the window merely the temperature gradient through the window will be greater and the amount of heat lost therefore also greater.
Richard Spencer, Clerkenwell, London EC1 (richard_c_spencer@compuserve.com)
- RADIATORS are placed under windows and so that the remaining walls are free for bookshelves or any. The window-wall is naturally rather limited in practical uses.
Tony Whitehead, Wakefield (tony.whitehead@mail.bl.uk)
- IT IS Truthful that estrus is lost through the glass, but this location is used because it creates greater condolement, by counteracting the cold down draught, which is particularly prevalent with single-glazed windows. The second reason for locating radiators under windows is that it allows greater flexibility when arranging article of furniture, which one does not normally place beneath windows. Ane mode to avoid too much heat loss is to have a window sill that projects well over the radiator and defunction that stop on pinnacle of the sill. With this organization, the oestrus is directed out into the room instead of behind the curtain and out through the window. (Plainly, oestrus loss could be further reduced with double-glazing, especially if it is of the Low-Eastward multifariousness and with argon gas instead of air in the cavity.)
Keith Bothwell, architect and ecological consultant, Canterbury, Kent (kba@gn.apc.org)
- IN Any heated room, the glass of the windows, particularly of single-glazed windows, will feel colder to the touch than the walls, since the glass is a better usher (and therefore, loser) of oestrus. The air in the immediate vicinity of the window is cooled, and since information technology information technology now heavier, convects or sinks to the floor, from where it proceeds to cantankerous the flooring as a chill draught. If the room is heated at a point opposite the window, this draught beyond the flooring is accelerated by upwards convection created by the oestrus source. To combat this, fundamental heating radiators are placed under windows. This reverses or neutralises the draught, thus giving a much more than even distribution of heat in the room, hopefully without draughts. Sadly, windows are a great way to waste rut irrespective of radiator placement. Thick curtains are a great aid to fuel economy, just remember to tuck them in behind the radiator!
Chris Green, Hounslow, Middx. (chris_and_ruth_green@compuserve.com)
- I Can THINK of two possible reasons why radiators are placed under windows. First, the ascension warm air from the radiator would provide a barrier against the common cold, similar to a warm air blower in a shop doorway. The other possible reason is that, in well-nigh rooms, the space under a window is free from obstruction past piece of furniture; hence the radiator would not exist heating up the back of a sofa. Why people comprehend radiators with long curtains is another question.
David 1000 Smith, Newbury, Berkshire (david.smith@home-free.demon.co.uk)
- THE REASON is non 1 of oestrus loss, only to abolish out cold draughts. Estrus will be lost from a room at the same rate regardless of radiator position. The design guide of the Charter Institute of Building Services Engineers (CIBSE) includes this paragraph in Table B1.23:- "In awarding, they [radiators] should be set below windows to offset the major source of heat loss and minimise cold downdraughts." Cold air falls and warm air rises, which is why hot-air balloons work. The rising hot air from a radiator meets the falling cold air from the window, which would otherwise collect on the floor of the room. Were the radiator positioned on the wall contrary from the window, this convective effect would increase the amount of cold air collecting on the flooring and would cause cold draughts across the flooring as the air moves towards the radiator. People are mostly uncomfortable if the temperature at their trunk extremities differs past more than about three deg C. Putting a radiator under the window helps to avoid cold draughts at foot level which would cause discomfort and would likewise help to brand the temperature more equal at all levels in the room, again avoiding discomfort. Situations do still exist where the heat can exist needlessly wasted. The principal fault that people make is to fit heavy floor-length defunction over both the window and the radiator below. This traps the rut in the window space and does not let it into the room. Correctly fitted curtains should not cover the top of the radiator, but should stop just below the window ledge. Of class, badly fitting, leaky windows won't assist.
Ian Thompson, Morley, Due west. Yorkshire. (i.a.thompson@education.leeds.air-conditioning.uk)
- Non ALL the heat will be lost though the glass. Some volition warm upwardly the common cold air side by side to the window and form a barrier of warmer air next to the cold window.
Steve Elliott, Lancaster (se@comp.lancs.ac.britain)
- In addition to the above, windows are normally to be constitute on outside walls, otherwise they practice non work likewise well. My builder insists that placing a radiator on an outside wall leads to radiation through the wall with consequent loss of heat (my house has solid walls which are non expert insulators). I am sure the fact that this allows him shorter and easier pipe runs is just a happy coincidence.
Mike Street, Barnet, Hertfordshire
- I accept heat reflector foil backside my radiators which definitely stops oestrus going out through walls behind the radiators, just the rest of the walls in the rooms are of course nevertheless at risk
Diane Schafer, Broxbourne, Hertfordshire
- My radiator is by the door which is reverse the window - it'south soooo annoying considering its incommunicable to seat nearly the window - too cold!
Alice, Cardiff Wales
- I have lived in several different houses over a good number of years; I have had unmarried glazing and double glazing, radiators below the window and on the door wall. I much adopt the door wall. I dearest the appearance of long curtains at my windows, I don't desire to bundle them upward on the windowsill in the evening. The wall where the door is hinged is, for me, the ideal place for a radiator. Tried and tested.
J. Wilson, Stirling Stirlingshire
- Hanging radiators beneath windows is a encarmine silly idea. It's all emperor'due south new clothes - I'd beloved to see some proper enquiry into where to place and hang radiators. All I have read so far is opinion ... I'd similar to run across the science!
Hugh Abbott, London United Kingdom
- I think having a radiator under the window is a silly identify to put information technology. The idea that it frees up infinite on other walls was once a valid signal in the days when y'all could just get one type of radiator. The market is now flooded with all sorts of funky designs, shapes and sizes. I have got a bay window in my bedroom with a curved radiator underneath which the curtains become tucked behind when they are closed, this looks and then untidy. I have but bought two narrow vertical radiators to get either side of the window, this will at present enable me to accept nice thermal lined curtains to the floor which wont have to be tucked into annihilation, and will keep the draught/cold air from the room and likewise let the radiator do its chore of radiating oestrus into my sleeping room. I think to be honest it is personal preference rather than a scientific discipline were you lot take them.
Pam , Chester
Where Should Furniture And Drapes Be Positioned With Heat Registers,
Source: https://www.theguardian.com/notesandqueries/query/0,5753,-2490,00.html
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