Key Takeaway
The #1 rule of building in: heat must have a path to escape. Identify your fridge's venting type before designing cabinetry. Front-venting units need minimal clearance, but the front grill must never be covered or obstructed — not partly, not by a door, not by a panel. Rear-venting units need a chimney effect with at least 200cm² per vent opening. Get it right the first time — retrofitting is expensive.
Building In Bible – Bar Fridges Australia
Building fridges into cabinetry looks amazing, but is not as simple as it appears. Done right, the fridge will run efficiently and last for years. Done wrong, trapped heat will shorten compressor life dramatically — and in many cases will void the warranty.
The single most important principle is airflow. Every fridge generates heat as part of its refrigeration cycle. That heat has to go somewhere. If it can't escape the cavity it builds up, the fridge works harder and harder to maintain temperature, running costs increase, and components fail prematurely.
There are three main installation scenarios, each with different requirements. Use the selector below to explore the one that matches your build.
Select Your Installation Type
Front venting units have a grill at the front base of the fridge. Air is drawn in one side of the grill and hot air exits the other — all through the front. This makes them the easiest and most seamless to build in, especially under a bench.
| Clearance Requirements | |
|---|---|
| Sides | 10mm Minimal |
| Top | 10mm Minimal |
| Rear | 50mm Minimal |
| Front grill | Never covered — no exceptions |
Key rules
Rear venting units breathe around their body — they need open space on the sides, top, and ideally at the rear to allow heat to escape. The goal is to create a "chimney effect": cool air enters low, heats up around the fridge, and exits high.
| Clearance Requirements | |
|---|---|
| Sides | 20mm Important |
| Top | 20mm |
| Rear | 100mm minimum Required |
| Air exit | Rear, side, or top — at least one exit point needed |
| Vent size | Min. 200cm² per vent opening (e.g. 20cm × 10cm) |
Venting configurations
Any of these layouts creates the chimney path — pair one low inlet with one high outlet. This applies to all rear-venting units, including non-compressor units.
- How 200cm² is measured: length × width — e.g. 20cm wide × 10cm high = 200cm².
- Another method in mind? These diagrams show the most common way to install, but there are others. Contact us on 1300 268 900 and we'll advise on the best approach.
These diagrams and measurements are an example only — every fridge is different, and some need more ventilation while others need less. Always check the product listing for your specific model.
Key venting rules
On a front-venting unit the grill cannot be blocked — not partly, not temporarily, not behind something that looks vented. Things that block a grill:
- A cabinet door fitted across the front of the fridge
- A decorative skirt or kick panel placed directly in front of the fridge base
- A vented or louvred panel used as a "breathable" cover
- Items stored in front of the fridge on the floor (crates, mats, etc.)
- Insulation foam or filler pushed into the grill area during cabinetry work
There is no acceptable percentage. Even 50% blockage will cause the fridge to run at significantly higher temperatures. The compressor will run almost continuously and may burn out, consuming far more energy in the process, and its lifespan will be dramatically shortened.
If a build has already been designed with something across the grill, ring us on 1300 268 900 before it is installed — we would much rather solve it on the phone than assess a dead compressor.
Rear-venting fridges built into sealed cavities with no rear clearance or exit vent traps heat that has nowhere to go. The cavity temperature steadily rises until the fridge is essentially trying to cool in a hot box.
Signs this is happening:
- Fridge runs constantly without cycling off
- Contents never reach target temperature
- Exterior sides of the fridge feel extremely hot (note: some models have internal condenser lines and run warm on the sides normally — e.g. the EX108 — so this sign alone isn't conclusive)
- Significantly higher electricity bills
- Compressor fails within 1–2 years
Many buyers choose a fridge based on appearance and price, then build it into cabinetry — only to find it isn't front-venting and doesn't have the airflow clearance it needs.
Always confirm the venting type before finalising your cabinetry design:
- Ask the supplier directly: "What venting type is it, and what clearances does it need?"
- Confirm whether it can be built in with minimal side/rear clearance
- Get the installation requirements in writing
- Check whether alfresco or higher ambient temperatures change the requirements
The power lead exits from the rear base of the fridge. When building in, allowance must be made for the lead:
- If the power socket is inside the same cavity as the fridge: Allow at least 75mm at the rear for the lead to loop and connect without being pinched
- If the power socket is outside the cavity: Allow at least 25mm at the rear so the lead can exit cleanly
These power lead figures are the minimum for the lead itself — they are not a substitute for the ventilation clearance the fridge needs. Whether that 25mm/75mm is enough space overall still depends on whether the unit is front or rear venting: a rear-venting fridge needs its full rear clearance (100mm minimum) regardless of the power lead, so 25mm behind the unit is never enough for ventilation on its own.
A power lead that is kinked, pinched between the fridge and cabinetry, or trapped under the fridge is a fire and electrocution hazard. It also causes intermittent power loss which can damage the compressor.
Pre-Build Checklist
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