Patented Technology

Patented Technology

How Thornhill Range Cookers Work

Cheaper running costs, optimum efficiency, minimal CO2 output – these are just a few of the reasons to choose a Thornhill range cooker.

Traditional cast iron ranges, such as an Aga range cooker or a Rayburn, are slow to reach temperature and therefore are mainly run more or less permanently. Whilst they look fantastic in a kitchen, they provided a limited range of control over their heat output and are expensive to run.

Thornhill range cookers, have all the looks and quality build of a traditional cast iron cooking range and are designed to give optimum temperature control, meaning they can be easily turned off and on or programmed in the same way you would do you central heating system. The result – a fantastic looking cooking range at a fraction of the cost! Here’s how we do it:

In the 1920s, Dr Gustave Dalen developed the Aga range cooker concept in Sweden. This stored heat system consisted of a heavy, well-insulated oven with a heat source (initially coal then later oil, gas and electricity) that was burned constantly to keep heating a massive griddle. The temperature stays fairly constant, although there is a large temperature gradient in the ovens, so the user controls the cooking rate by moving items up and down into the different cooking compartments. Because it takes around 6 hours to heat up this oven range, the cooker is usually kept on 24 hours a day, 365 days of the year.

Thornhill Range Cookers Ltd have taken this heavy insulated oven principle and designed it for modern, efficient low-polluting oil & gas burners, automatic wood pellet burners and our super-efficient T3 log wood burning engine. The result – an efficient, low polluting, controllable Aga range cooker alternative, an iron range cooker that has amazingly low running costs. It looks the best, works the best and uses the least fuel.

Wood Fired 3-Oven Range Cooker Technical Summary

Wood Pellet 3-Oven Range Cooker Technical Summary

Oil Fired 3- and 5-Oven Range Cookers Technical Summary

Our Product Range

See The Range