FI102514B - Sauna heater from below - Google Patents

Description

102514 '

The present invention relates to a bottom heating sauna heater according to the preamble of claim 1.

It is known that there are shortcomings in sauna heaters that make saunaing uncomfortable and even unhealthy, as sauna research has shown.

The first major flaw that plagues existing heaters is that. the heat generated by throwing often rushes directly towards the bathers or rolls into the sauna as a hot attack through the roof, often in a very unpleasant way.

Another mistake is that the heat obtained by throwing does not heat the whole sauna evenly, but often the saunas are terribly hot from the top, but it can be quite cold at the bottom. The problem is so severe that there are bathers who protect their heads with a wool hat against the heat at the top.

The problem of uneven heat has always plagued saunas, and technically changed structures have not eliminated the problem, but apparently it has been exacerbated by the increase in the heat output of the heaters.

Attempts have even been made to eliminate this drawback by digging the stove as low as possible into the sauna floor. However, these companies have not been able to become more widespread because they have been technically difficult to implement. They have also not achieved a significant result, as the heat obtained by throwing drips upwards from there and heats the sauna unevenly.

Third, especially the so-called. a characteristic defect of continuously heated heaters is the strong hot air circulation that occurs when they are heated due to their structure. The hot air circulation causes dry, unhealthy, ion-poor heat, as well as unpleasant heating of the sauna benches and walls. Sauna benches are often so hot that the bather is forced to protect the back with a towel before sitting on the benches. Naturally, this is tedious and unhealthy.

The object of the present invention is to eliminate the above-mentioned drawbacks, and to make bathing in a sauna even more pleasant and healthier.

This purpose is achieved by building the sauna heater closed from the top. The closed structure prevents hot air circulation and allows heat to be directed towards the floor. A throwing funnel is installed above the stove, through which the throwing water is led to water pipes installed above the stone space, into which nozzle holes have been drilled. This equipment conducts the throwing water evenly onto the stove stones, and the heat obtained by the throwing is discharged from the forced steam pressure out through the heat inlet duct, and spreads through the floor soft and evenly, heating the entire sauna from the bottom up.

The top-closed design of the heater affects heat quality in three significant ways: 1. It eliminates the hot air circulation that is a common ailment of open heaters. Hot air circulation is no longer a problem with this heater, but the air stays soft and ionic, and the overheating of the benches and walls is gone.

2. The heat from the bottom to the sauna heats the sauna evenly from the bottom up.

102514 3. This structure has been used to remove the hot steam bursts that are characteristic of all open heaters.

The invention also has the advantage that the heaters which are thermally insulated can be kept warm for longer periods, for example over a holiday or even continuously, without high heat costs, since the closed structure prevents heat from escaping because the heat does not fall down under its own weight.

In order not to lose the opportunity to soften the bath and get a fresh scent in the sauna, there is a counter shelf designed for the heaters in the lower part of the heat outlet.

More specifically, the heater according to the invention is characterized by what is set forth in the characterizing part of claim 1.

This section describes the invention in more detail with reference to the accompanying drawings, (1-2-3), which in three different versions show a sauna heater heating from below

I have attached three different heater clarify the images show that the present invention can be used widely.

The sauna heater, which heats from below, is constructed so that the heater is closed from above, but the upper part (1) must be removed because it acts as a service hatch through which stones are stacked and replaced and other maintenance tasks that may be performed inside the heater. A water pipe with nozzle holes (2) is installed below the upper part (1) and a throwing funnel (3) is installed above. Through the piping, the throwing water is led to the stove stones, where it generates steam pressure. The steam pressure pushes the heat down through the downcomer (4) towards the floor, from where it spreads to the sauna evenly and comfortably. The downcomer (4) can be placed, for example, as shown in the figures (1-2-3), either in the middle or on the side of the rock space. A wood-burning stove has a more consistent setting on the side of the downcomer.

The downcomer (4) is not necessarily needed if the bottom of the stove's stone space is perforated, but heat can also be forced to settle through the stone space. However, in wood-fired heaters, such a solution would be cumbersome, and electric heaters will also work better with the downcomer, as there is no risk of clogging the downhole holes with, for example, weathered stone mass.

In order not to lose the opportunity to soften the bath and create a counter-odor in the sauna, the heaters can be equipped with a counter stand (S).

The electric heaters according to the example drawings I used in the experiments were made 1.5 mm. iron plate and equipped with only three kilowatt resistors. Despite their low power, they were large enough for a normal-sized detached house sauna.

The insulated stove was insulated with seven centimeters of refractory mineral insulation and worked flawlessly. Despite the insulation, the insulated stove heated its exterior so much that it kept the sauna warm enough, and no preheating was needed when taking a bath.

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The wood-heated stove was made of two mm of iron plate, and it had no difference compared to a normal stove except that the heat was moist and pleasant and the sauna was evenly warm from below.

All the heaters had a thirty-liter stone space, which certainly helped that the relatively low-power heaters proved to be sufficient for a normal-sized detached house sauna, as the large stone space also forms a large heat store.

When all these heaters were tested, it was found that: 1. The saunas were heated very evenly from bottom to top, and the heat was moist, soft and pleasant.

2. The hot heat surges were gone, and when thrown, the heat rose pleasantly in the sauna as if it had wrapped the bathers in their arms.

3. At no point did the sauna benches or walls heat up to such an extent that touching them would have caused a burning sensation.

The solutions according to the invention can, of course, be considered to be used within the scope of the invention in other cases as well. For example, it is possible to build accessories for existing heaters, thus converting them to bottom heating.

Claims (3)

102514 1. The underlying color of the aggregate is in the case of one or more aggregates, (1) is used in the form of an aggregate (2). Vattnet som gjuts pä aggregatet leds via rören ocmstunken pä stenama ochällen vattenänga leds vidare nedät längs channelsen (4) och strömmar ut som vattenänga mot golvet. A bottom-heating sauna stove comprising a top (1) which closes the stove and acts as a service hatch, characterized in that the stove comprises a water piping (2) with nozzles mounted on a stone space and a throwing funnel (3) mounted on the stove, through which the throwing water is led to the stove stones and the generated steam is led down from the stove through the downcomer (4) towards the floor. 2. An embodiment 1 according to claim 1 is characterized by an underlying aggregate of the lowering channel (4), which can be led to a single object, which is not or can not be connected to the stanutrum. A sauna heater heating from below according to claim 1, characterized in that the downcomer is installed, either in the middle of the stone space or to the side, the downcomer (4). A bottom-heating sauna stove according to claim 1, characterized in that said structure can be implemented in different types of stoves. Patentanspräk 3. A patented embodiment 1 is characterized in that the underlying aggregate structure is constructed in such a way that it is type of aggregate.