Wood-burning boiler
OwnerRobert Bastinventor
Life of this patent
Estimating the term…
Abstract
A wood-burning boiler is provided, comprising a combustion chamber having a first air intake, and being adapted for holding combustible wood. An exhaust chamber is fluidly coupled to the combustion chamber, and is adapted to receive burnt gases from the combustion chamber. A preheat chamber is included, having a second air intake, and the preheat chamber is fluidly coupled to the combustion chamber and is conductively proximate to the exhaust chamber such that the burnt gases in the exhaust chamber heat the air within the preheat chamber prior to the air in the preheat chamber entering the combustion chamber. The boiler also includes a water jacket conductively proximate the combustion chamber.
Claims17
A wood-burning boiler, comprising:
- a combustion chamber having a first air intake and adapted for holding combustible wood;
- an exhaust chamber fluidly coupled to the combustion chamber and adapted to receive burnt gases from the combustion chamber;
- a preheat chamber having a second air intake, the preheat chamber fluidly coupled to the combustion chamber and conductively proximate the exhaust chamber such that the burnt gases in the exhaust chamber heat the air within the preheat chamber prior to the air in the preheat chamber entering the combustion chamber;
- a second preheat chamber conductively proximate the exhaust chamber;
- and
- a water jacket conductively proximate the combustion chamber.
A multi-stage wood-burning boiler, comprising:
- a primary combustion stage, including:
- a combustion chamber having a primary air intake to provide air for primary combustion of a combustible wood;
- and
- an exhaust chamber fluidly coupled to the combustion chamber and adapted to receive burnt gases from the combustion chamber;
- a secondary combustion stage including:
- a preheat chamber having a secondary air intake, the preheat chamber being conductively proximate the exhaust chamber such that the burnt gases in the exhaust chamber heat the secondary air within the preheat chamber prior to the secondary air entering the combustion chamber for secondary combustion of the combustible wood;
- a second preheat chamber conductively proximate the exhaust chamber;
- and
- a water jacket conductively proximate the combustion chamber.
A method of heating water, comprising:
- providing a boiler having a combustion chamber fluidly coupled to a primary air source;
- combusting a first stage of combustible wood fuel within the combustion chamber using air from the primary air source;
- providing a preheating chamber fluidly coupled to a secondary air source and conductively proximate the exhaust chamber;
- expelling burnt gases into the exhaust chamber;
- heating the secondary air within the preheat chamber by conduction from the exhaust chamber to the preheat chamber;
- introducing the heated secondary air into the combustion chamber;
- combusting a second stage of combustible wood fuel within the combustion chamber using the preheated secondary air;
- expelling exhaust gases out of the exhaust chamber;
- a second preheat chamber conductively proximate the exhaust chamber;
- and
- providing a water jacket conductively proximate the combustion chamber, thereby heating water within the water jacket.
Dependencies are inferred from the claim text.