Saltfire Peanut Bignut 5 Wood Burning Stove 5kW Cast Iron

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The wonderfully named "Bignut" is a larger version of the standard-sized Peanut 5 and the biggest seller of the range.

Customer Reviews

Based on 78 reviews
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A
Adam
Great stove and great service

We purchased the Peanut 8 from Stovefitters to replace our old stove. We liked the style of the Peanut range, has somewhat of a timeless look to it. Modern but not too ultra modern that it could become dated in a few years.

It finally sits pride of place on our new fireplace and really looks the part. I was surprised about how nicely the door opens and closes, very smooth. We haven't fully tested it out yet, only once just after installation. Certainly looking forward to sitting in front of the Peanut 8 on those cold winter nights!

The customer service was excellent from Stovefitters, arranging delivery was quick and easy. Julian answered a few questions I had very promptly.
Order no#13415

T
Tania Pearson
Peanut 5 – small but mighty!

We had done lots of research looking for a compact wood burner for our sitting room, and almost settled on a model from a well-known British brand when we stumbled across Julian’s blog and became curious about the Peanut. Eventually we decided to go for Peanut 5, which felt a bit like a punt at the time after weeks of staring at wood burner from all those snobby big well-known brands. We’ve now had the Peanut for a couple of months and, thanks to this odd cold weather, have used it quite a lot and have no regrets whatsoever. It’s a stylish, solid and easy to use. We especially love how quickly it lights up when the primary airflow is open (aka “Inferno Mode”) and the large window providing the mesmerising view of the fire and glowing embers.

DEFRA Approved

This stove can burn wood in a Smoke Control Area (most towns and cities are Smoke Control Areas).

DEFRA
Approved

This stove can burn wood in a Smoke Control Area (most towns and cities are Smoke Control Areas)

Eco Design 2022

This stove is certified as Ecodesign compliant (has passed the new and stringent 2022 regulations).

Ecodesign & myths about pollution

Eco Design 2022

This stove is certified as Ecodesign compliant (has passed the new and stringent 2022 regulations)

Ecodesign & myths about pollution

MATERIAL & Output

Material: Cast-iron body with a cast-iron door

Output: 5kW
(max approx: 6.8kW)

Material & Output

Material: Cast-iron with a cast-iron door

Output: 5kW
(max approx: 6.8kW)

DImensions

Body
Width: 485mm
Height: 579mm
Depth: 341mm

Flue
5" (125mm)

Dimensions

Body
Width: 485mm
Height: 579mm
Depth: 341mm

Flue
5" (125mm)

KEY SELLING POINTS

Efficient and clean burning

Dedicated wood-burner

Large viewing window

Air-wash clean glass system

Key Selling Points

Cast-iron and contemporary

Very heavy and well-made

Fast-flame (easy to light)

Julian's Thoughts

The best-selling stove of the autumn/winter 2019 - to the point that UK stores ran out of stock.

Love the fact they are cast-iron yet contemporary in design.

Love the "Fast Flame" feature.

Top favourite without a doubt.

Julian's Thoughts

The best-selling stove of the autumn/winter 2019 - to the point that UK stores ran out of stock.

Love the fact they are cast-iron yet contemporary in design.

Love the "Fast Flame" feature.

Top favourite without a doubt.

Description

About the Saltfire Peanut Bignut 5

Saltfire Peanut Bignut

Like all other Peanut stoves, the Bignut is made of cast-iron and has the amazing capability of easily igniting full-size logs even after a fire has almost gone out. Just a few small embers left at the base of the stove is enough for the Peanut's flamethrower style primary air system. More info here.

The wonderfully named "Bignut" is a larger version of the standard-sized Peanut 5 and the biggest seller of the range. The canny amongst you may have noticed that the Bignut is the same size as the Peanut 8 - fatter firebricks inside allow the stove to be sold as a "nominal 5kW", thus avoiding, in most properties, the need for an air vent in the room.

The Bignut has an impressive 80.1% efficiency rating and is, as the name suggests, big.

Peanut stove cook kettle top

See "Customers Also Bought"

Fast Flame

All Peanut stoves have Fast Flame to make re-lighting a small bed of embers easy peasy. Read more on our Peanut 5 page.

Control

Three air levers for maximum control.

Specifications

Output & Fuel

Wood-only (can only burn wood)
Nominal 5kW. Max. 6.8kW

This stove will run happily at 2kW - 6.8kW depending on fuel load. Note that running the stove at a higher fuel level than that specified in the manufacturer's manual may cause degradation of stove innards (firebricks, baffle etc.) although these are replaceable (and repairable with beige fire cement).

What size stove do I need?


Eco Credentials

This stove meets and exceeds the new 2022 Ecodesign regulations

This stove is approved by DEFRA to burn wood in a Smoke Control Area


Efficiency

80% (as a rough guide 80% of heat goes to the room with 20% going up the chimney).

Don't overthink efficiency. 75%-85% is fine and 90%+ efficiency may not work so well on shorter or difficult chimneys.


External Air

No, this stove cannot be fitted with an external air kit (draws air from outside via pipe direct to stove). Usually this option is not relevant unless a room air-vent is required and the property is airtight (by design or choice).

Air vent advice here


Body & Door

Cast-iron stove (5-year body guarantee) with cast-iron door

What to buy steel or cast-iron? Do not overthink. Steel heats fast. Cast-iron takes a little longer but retains heat longer as fire dies.


Hearth

Hearth thickness: minimum 12mm non-combustible material (can include floor thickness).

If in a fireplace recess, a full 125mm thickness constructional hearth is required. This will usually be in place as part of the recess design.

Hearth regulation advice here

Dimensions

Dimensions

Height: 579mm
Height with log store: 790mm
Width: 485mm
Depth: 341mm
Front of pipe to rear of stove: 172mm

Flue outlet: 5" (125mm)

Which fitting pack for my liner? A fitting pack includes all you need except liner and chimney closure plate (also sometimes known as register plate)? Advice here


Glass

Viewing area (from outside stove looking in)

Width: 360mm
Height: 290mm


Flue

5" (125mm) collar top or rear (can be installed with a 5" or 6" chimney liner)

Top or rear connection


Air Gaps

Distance to combustibles SIDE: 450mm
Distance to combustibles REAR: 400mm

To non-combustibles there are no hard rules but, around the stove, a 50mm minimum air gap is recommended to brick/stone. This to be increased to 100mm for rendered or boarded surfaces. Prior to purchasing any stove download the installation manual to check that manufacturers do not have any additional requirements.

Distances & heat shield advice


Log Length

Max log length: 340mm

Delivery Promise

We offer 14 days from delivery to report any courier damage to your stove. If a stove is damaged by the courier we will replace or refund as desired.

Guarantee

Manufacturer's Guarantee

The manufacturer offers a 5 year body guarantee

Glass

Why do we sell glass insurance (pre-ticked box close to ADD TO CART button)? Because glass is classed, in the stoves industry, as a consumable item and not covered under ANY guarantee by any manufacture for any reason whatsoever. If it breaks or cracks on day one or day twenty it is not covered. If the inside of the glass goes cloudy or gets any kind of surface coating or etching then it is not covered (it will be to do with what you are burning according to manufacturers and glass makers). Glass usually costs £30-£60 plus postage but can be more on higher end models.

Performance

Defra-approved or/and Ecodesign stoves are designed and thoroughly tested before being allowed onto the market and every stove sold is identical. In the rare event a stove does not perform as well as expected it is always down to the installation, the chimney or circumstances unique to the property (pressure imbalances caused by local conditions, down drafts etc.). Here at Stovefitter's we have taken stoves back on a number of occasions for testing on our chimney and in every situation the stoves performed as expected (we may of course find a faulty stove one day but never as yet). We may, at our discretion, take a stove back once it has been used and in this situation a 50% refund would be provided (stove would be sold as second hand). We would, however, offer a 33% refund on a replacement stove.

£ PRICE MATCH £

We will happily strive to match any price you may have from any other supplier as long as the other supplier has it in stock.
Offered an "ex-display" or "shop soiled"? We will strive to offer you a new stove for the same price.

Already have a chimney? You need 1. Stove 2. Liner 3. Fitting Pack 4. Chimney closure plate (Hardiebacker board from Builder's merchants or galvanised sheet).That's it!
No chimney? Check out our shed kits or let us design your clip-together chimney design - easy peasy.

Stovefitter's Warehouse is owned and managed by Julian Patrick, blogger and author of The Stove Fitter's Manual. Julian was previously a full-time installer of wood-burning stoves (including solid fuel heating systems). He laid down the tools in 2013 to write his stove manual and open a small shop in North Wales (the Wood Stove Hut, soon to grow into The Stovefitter's Warehouse).

More info about the company and Julian's team here