Aga Cooker Flue Options

Depending which Aga Range Cooker you have ordered, your flue may be different or even non-existent!


Our 13amp/ElectricKit cookers are normally room-venting so they can be located anywhere in the kitchen, as long as the floor can support it.


Our oil cookers need to be vented into either an existing lined (to reduce condensation and improve updraft) chimney stack or a pre-fabricated twin-walled metal flue (if you don't have a chimney). The height of the flue pipe generates updraught. You can incorporate bends but this will reduce the updraught. This conventional flue is black flue pipe (4" diameter), that runs from the top plate, up the wall then into the chimney or pre-fab twin wall system. Oil flue pipes must be 5m minimum length.


Our gas cookers can be installed with either a conventional flue (3m minimum length) as above, or as a power or balanced flue. Powered flue comes with a fan integrated into the top plate. This is consistently running from a power supply and gives off a gentle hum (similar to a refrigerator!). The fan is controlled by two sensors in the flue way which shut off the cooker if the fan fails. This is to stop any carbon monoxide re-entering the room. The fumes are pushed out of the flue to the outside, through a 54mm pipe. The flue pipe can run up to 6m but this can be restricted depending on the routing or how many bends it has. A balanced flue comes straight out the back of the cooker horizontally, through an external wall to the outside. This has a limit of 600m from the back of the cooker can be temperamental depending on the wind conditions (not recommended for windy gardens!).


Conventional Flues (oil and gas) can be installed vertically into an existing chimney with no bends more than 45 degrees from vertical. You can also choose a twin-walled system if there is no existing chimney. The twin-walled system is basically a metal pipe, strapped to the outside of the exterior wall, stretching to 600mm clearance of the main house and any other obstructions.

The flue must have a minimum vertical length of 3m for gas and 5m for oil. This minimum may need to be longer if there are bends in the system to assist with up-draught.


More Blog Posts

We're Saltire Cookers.


We specialise in Refurbished Aga Cookers and Electric Aga Conversions to turn older Aga Cookers into efficient, controllable models (without losing the traditional design or radiant heat cooking).


Out of all of our cooker models, the brand new Esse Cookers offer unrivalled cooking experience, and the brand new Everhot Cookers are designed to be 'always on' whilst offering the lowest running costs possible.


We're Saltire Cookers.


We specialise in Refurbished Aga Cookers and Electric Aga Conversions to turn older Aga Cookers into efficient, controllable models (without losing the traditional design or radiant heat cooking).


Out of all of our cooker models, the brand new Esse Cookers offer unrivalled cooking experience, and the brand new Everhot Cookers are designed to be 'always on' whilst offering the lowest running costs possible.


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Yellow Flame on your Oil Aga?

by Steven Johnson • 22 March 2026
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Plinths for Aga Cookers

by Steven Johnson • 22 February 2026
Our black steel plinths are available to add onto your cooker order if required. They add additional height to the overall Aga dimensions and are available in multiple heights to suit your kitchen design. Traditionally, these British-made Aga Cookers were 851mm from the base to the top of the black enamelled surface. When do you need a plinth? If your worktop or ideal working height is taller than 851mm and you want your Aga Cooker to match them, you'll need a plinth underneath. Brand new Aga Cookers (as well as our ESSE and Everhot cookers) have a fixed height plinth built into the cooker body. If you need these raised higher, you'll need to lay marine-grade plywood or concrete at the required height before installation. What sizes of plinths are available? Our plinths are available in 50mm to 80mm sizes. They also allow for levelling of the base before the assembly of the cooker begins. How do I choose my plinth size? When choosing your required height, you should consider your finished floor height vs your worktop height. It's standard for Aga Cookers to finish slightly proud of the worktop, since the top plate is curved rather than a right-angle ( photo shown below ). If you were to finish level with the worktop, you will have a bigger 'valley' in-between, where crumbs and debris love to collect! Usually, the plinth is seated onto the subfloor, with finished flooring/tiles ran up to and around the plinth once the cooker is built. Alternatively, you can either seat the plinth directly onto the finished floor/tiles, as long as they can bare the weight of the cooker, or we can raise the plinth using the adjustment legs, to allow the finished floor to tuck underneath slightly ( photo shown below). If choosing this option, you should bare in mind the supporting feet in each corner of the plinth start at around 20mm from the front of the plinth. This means your flooring could run underneath for a depth of around 20mm if preferred. After the cooker is built, there are NO adjustments in height, without a strip down and rebuild. What do Aga Cooker plinths look like?
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