Heating apparatus and method of operating a heating apparatus

Abstract

A heating apparatus for generating a hot air flow comprises a single fan, a burner heating element and a resistance heating element. In this respect, an air passage that conducts air to be heated and a combustion air passage that leads to a burner adjoin the fan downstream, wherein a combustion air flow in the combustion air passage can be controlled by a control element associated with the combustion air passage.

Description

[0001]The invention relates to a heating apparatus for producing a flow of hot air, in particular for a camper.[0002]The invention additionally relates to a method of operating a heating apparatus for producing a flow of hot air, in particular for a camper.BACKGROUND OF THE INVENTION[0003]Heating apparatus for producing flows of hot air for campers are known in the prior art. Campers are understood in this context as mobile homes, trailers, tents, portable cabins, etc. Heating apparatus for producing flows of hot air are furthermore generally used in motor vehicles to heat their passenger compartments. The heating apparatus are mostly designed as so-called independent vehicle heaters in this application case, i.e. the heating apparatus can be used independently of the operation of the propulsion engine of the vehicle.[0004]Heating apparatuses for producing a flow of hot air can heat an air flow to be heated, for example, via a burner operated by diesel, gasoline or gas and / or via an...

AI Technical Summary

Benefits of technology

The invention is related to a heating apparatus for producing a hot air flow. The technical effects include the ability to adjust the combustion air flow through a backflow line and the arrangement of a control element in the backflow line to flexibly respond to space constraints. The heating apparatus also includes a sensor to detect combustion quality, and the control element is set based on the sensor values to ensure a clean and efficient combustion. The fan can be a single fan wheel that generates the air flow for heating and combustion, resulting in a compact and simple heating apparatus design. The invention also provides a method for operating the heating apparatus in mixed operation to ensure a suitable air flow for the burner.

Problems solved by technology

Such heating apparatus can always provide the required combustion air flows and useful air flows, but require a comparatively large construction space and are complex in their structures.

However, the two fan wheels can then not be operated independently of one another.

It can consequently occur during mixed operation that either too large a combustion air flow or too small a combustion air flow is supplied to the burner.

This can have the result that no optimum ratio of fuel and combustion air can be set at the burner.

As a consequence, the burner will emit an increased quantity of pollutants.

If much too large a combustion air flow is supplied to the burner, combustion may also no longer be possible.

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