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Heating of modern, warm home: comfortable, healthy, cheaper III: Myths and stereotypes about heating

Part 3 - Myths and stereotypes about heating
 
The world is moving forward and yet outdated and old ideas and false stereotypes, completely out of touch with current reality, are still doing great. Duplicating popular myths needs not be a sign of ill will, but only a lack of experience and incomplete knowledge, however, it can be an aspect of the competitive struggle, which can be easily taken advantage of. The problem is that popular myths can lead to making the wrong choice by an incorrect alignment of the cause and effect chain.

Heating and allergies
Conventional wisdom says that heating with radiators promotes allergies, but underfloor heating reduces it. Meanwhile, the exact opposite may be the truth. In modern, warm, well-ventilated homes with low temperature heating systems there is no direct relationship between the type of heat emitter, i.e. radiator, and the severity of allergic conditions. An allergen is necessary for an allergic reaction to occur. 90% of allergies are caused by mites, and more specifically by their excretions and remains. The main place where mites develop is the bed. On what type of floor does the greatest excessive dryness occur, and subsequently increased fragmentation and therefore higher volatility of mite allergens? On heated or unheated floor? Of course, that on a heated one.
Getting up in the morning, by the movement of the legs, a person raises a cloud of allergens into the air... So why the belief of some people that underfloor heating reduces the intensity of allergies? The apartment with underfloor heating is simply furnished and equipped differently. There is less furniture, no carpets, curtains and blinds ... In case of underfloor heating, dust deposited evenly on the floor forces to its frequent vacuuming or wet wiping. The type of heating does not affect the amount of dust. The amount of circulating dust follows directly from the frequency and accuracy of cleaning and the amount of pollution generated in the vicinity of our house, but allergens are only some of the components of house dust. If someone lives in an overheated, dusty air in an apartment building and moves to a house completely surrounded by vegetation, with a low temperature heating system, they will immediately notice the difference. In apartment buildings, drying of the mucous membranes in the upper respiratory tract makes them susceptible to infections. Not necessarily to allergies. In the new house, this problem disappears and it does not matter whether it has underfloor heating or radiators...

Vertical, preferable temperature distribution

Manufacturers and installers of underfloor heating often show a diagram to customers, which shows that in case of this type of heating, the vertical distribution of temperature in the room is close to the ideal, which in nature occurs who knows where and when. Take a look at these temperatures...

But in modern, warm houses the interior temperature differences do not occur. Unless in case of an excessively heating underfloor heating. At my house, in rooms heated with Regulus radiators, the temperature difference between the floor and the ceiling is 0.75 °C. Less than one degree! Nobody leans directly above the radiator, and in a warm, well-accumulating warmth house, the air is well mixed, almost isothermal.

This "almost isothermal" is necessary for the exchange of air for fresh air, well oxygenated and free of excess water vapour.
Is it legitimate to say that intense heat by the feet and temperature a few degrees lower at head level is a comfortable and optimal effect? And yet this is what this popular diagram states. I think something's not right here... 

Underfloor heating makes it possible to keep a lower indoor temperature?
And why is that? Is it because it warms the feet? The temperature felt is also affected, perhaps even primarily, by the temperature of the remaining five partitions - the four walls including windows and the ceiling... Floors should be pleasantly temperature-neutral, and we should have an impact on the relatively rapid change of indoor temperature in the range of two, three degrees...

Why? When we work we should have a little different temperature then when we rest and sleep, and when we are not at home it should also be a little different.
Let's remember that any reduction of indoor temperature by 1°C is a reduction of heat loss by about 6%. It's not a myth, it's math. In a warm house, possibly more in case of quick radiators than underfloor heating.
We should also remember that no economical heating system is a substitute for proper insulation and ventilation of the building.
All heaters, except radiators, give off heat by radiation and convection in proportions dependent on the surface emission and the temperature of the heating medium. For a well-insulated building, better radiators than Regulus have not yet been invented. Time works in favour of Regulus radiators, however, for the purposes of their proper evaluation, we must reject the still popular myths and stereotypes.
Indefinite profit from their use is due to their low water content, and hence minimal thermal inertia. Small water charge in the system, after all, means a low cost of bringing the system the effective heating temperature, the ability to quickly interrupt heating in case of heat gains, as well as the possibility to actively influence the periodic changes of temperature in heated rooms, and cheap and fast heating of the building if necessary. Especially this last feature in our climatic zone with the predominance of the transitional period (spring, autumn) has a key value. We can, even in the middle of a cooler, humid summer, switch the heating on for a moment in order to "break the temperature", to eliminate the feeling of moisture. Regulus radiators emit heat immediately and only as much of it as the user desires, perfectly complementing the increasingly precise components of modern central heating systems.
High thermal comfort, health and well-being for less.

Budujemy Dom - 11-12/2013

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