Nestor Martin – S Series – S33 / Stanford 33


The Nestor Martin S33 is part of the Stanford/S-Series Range and it comes with a double-wall steel and cast-iron body, and a long-life, cast-iron firebox interior. This mix allows for a traditional design with a modern, sleek look which make it suitable for installation in any home interior.

It has a rear heat shield; a vermiculite baffle plate, and a multifuel riddling grate to stir up the coals. There is a removable ash pan, and the combustion chamber comfortably loads 40cm logs. There is a top or rear flue connection option, and the option to connect to an external air intake. The door comes with IR thermal glass and there is an airwash glass cleaning system.

The S33 comes with patented Woodbox® Combustion System Technology. This system uses a balance of preheated Primary and Secondary air, and natural flue draft, in a process of combustion and post-combustion to obtain very high efficiency and flame controllability. It is equipped with a ‘variable flap mechanism’ for controlling the air intake according to the type of fuel burnt and the desired size of the fire. The air controls allow you to open these flaps manually and the tool provided should be inserted into the control handles for manual operation. The control flaps bring air into the combustion chamber for distribution above the fuel grate to feed the fire and for the airwash glass cleaning system. The Rear Flap is used for adjusting the minimum air setting and for wood fires. The Front flap allows air to enter the fireplace under the fuel grate to burn multifuel and to make lighting fire easier.

An ‘optional extra, special order’ remote control kit, and a motor for the kit (to open and close the flaps automatically) are available. The thermostat featured in the remote control allows you to select the desired temperature, and the fireplace will automatically self-regulate.

For Overnight Burning there is a Burn Rate Knob which allows you to adjust the size of the air intake opening, and the size of the fire. Turning the knob to the left increases the intake of air for bigger flames and a cleaner burn. Turning the Burn Rate Knob to the right decreases the air intake for smaller flames and an extended Overnight Burn.

The S33 is suitable for heating a small to medium sized area. It comes with an energy efficiency Index A+. The S33 is manufactured and imported from Cantabria, Spain. It comes with a EN 13240 Certification and a 5-year limited warranty on the fireplace body and firebox.

Weight 160 kg
Dimensions (depth x width x height) 41.8 × 63 × 75.4 cm
Output kW


Output range

Heating Area

Energy Source

Flue Width

150 mm

Flue Configuration

Top and Rear




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