Catercombi Ltd
Rational CombiMaster 20 x 1/1 GN, Gas
£3,995.00
+ VAT
Payment options
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100% Positive Feedback
eBay verified seller
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5/5 Google Reviews
In business since 2013
Why Choose CaterCombi?
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57-point PPM service schedule
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3 months Parts Warranty
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Refurbishment record available
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User manual
Accepted payments
About this oven
The Rational CombiMaster combi oven is a reliable, workhorse solution for professional kitchens that demand consistent results and simple operation. CaterCombi refurbished CombiMaster ovens are expertly reconditioned, fully tested, and prepared for immediate installation—delivering trusted Rational performance at a significantly reduced cost.
Designed for high-output environments, the CombiMaster features precise humidity control, powerful air circulation, and robust manual cooking modes, making it ideal for chefs who want dependable results without unnecessary complexity. Its durable construction and straightforward controls help reduce downtime and keep service running smoothly.
✔ Fully refurbished by CaterCombi engineers
✔ Cost-effective alternative to buying new
✔ Robust, high-output commercial combi oven
4309
Download the user manual here.
Download the installation guide here.
Oven capacity — 20 Grid
Up to 100 covers
I'd look at a 10 grid
100–150 covers
Excellent
150–240 covers
Good
240–300 covers
Possible, depending on menu
300+ covers
I'd look at a 40-grid
What's included
Features & capabilities
Full feature breakdown for this model.
| Feature | Detail |
|---|---|
| Temperature Range | ✓ 30°C–300°C |
| Cooking Modes | ✓ Three core modes: convection (dry heat), steam (100% humidity), and combination (simultaneous heat + steam) |
| Humidity / Steam Control | ✓ Manual |
| Programmable Cooking | ✓ No |
| Fan Speed Control | ✓ Fixed fan speed |
| Core Temperature Probe | ✓ Yes |
| Cleaning System | ✓ Semi automatic |
| Capacity & Pan Configuration | ✓ 1/1 GN or 600 x 400 mm trays |
Technical details
Tech Specs
Full technical specification pulled directly from product metafields.
| Product | |
| Make | Rational |
| Model | CM 201 G |
| Type | 20 Grid |
| SKU | 4309 |
| Condition | Professionally refurbished |
| Power & Electrical | |
| Power Supply | Gas |
| Supply Details | Gas - also requires 13-amp connection to power display and electronics. Water & Drainage connection required. |
| Dimensions | |
| Dimensions (W×D×H) | 880mm wide x 800mm deep x 1800mm high |
| Warranty | |
| Warranty | 3 months Parts Warranty |
| Extended Warranty | Available on request — call 01227 469692 |
Site preparation
Installation & connections
What your kitchen fitter or site needs to have ready before delivery.
| Water Supply | |
| Connection | Direct feed - one 3/4" feed. When using a CTU, it is recommended to adjust to two 3/4" feeds. |
| Flow Pressure | 1.5 - 6.0 bar |
| Drainage | |
| Waste Connection | Tundish and Drain Kit recommended for XS, 6 and 10 grid. Floor drainage or Drain Pump and Drain Kit needed for 20 and 40 grid units. |
| Clearance & Access | |
| Side Clearance | Minimum 350mm recommended for servicing (500mm if a heat source is adjacent) |
Delivery & Warranty
Delivery, collection & warranty
Everything you need to know before your oven arrives.
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UK Pallet Delivery — £75
Delivered anywhere in the UK via pallet. Order before 2pm for next-day delivery. Shipping calculated at checkout.
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Collection Welcome
View ovens working and collect from our warehouse: CaterCombi Ltd, 6 Jackson Road, Wincheap Industrial Estate, Canterbury, Kent, CT1 3RF.
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3 months Parts Warranty
If we can't supply the part needed, we'll send a replacement of equal or better spec. If no replacement is available, a full refund is issued. Terms and Conditions apply.
What every oven goes through before sale
- 57-point planned preventative maintenance (PPM) schedule by our qualified catering engineers
- Full service checklist provided — list of all parts changed available to keep
- Oven can be viewed working via video call or in-person at our Canterbury warehouse
- 3 months Parts Warranty included as standard
- Extended warranties available — call 01227 469692 for details
- Warranty valid only when installed by a fully qualified catering engineer per manufacturer guidelines
Watch & learn
Product videos
See this oven in action — walk-throughs, features and demonstrations.
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100% Positive Feedback
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5/5 Google Reviews
