A built-in oven sits in a kitchen tall unit or under the worktop, unlike a freestanding range cooker with a hob. When you renew a kitchen you choose between a standard hot-air built-in oven and a combi oven that also has microwave functions. That choice sets not only the price, but also how much space you need and which functions you use every day. A built-in oven often lasts ten to fifteen years, so a wrong call here lasts. This article explains the types, when a combi oven with microwave makes sense, and gives practical notes on niche size and connection. At the end you find two examples from the Nostalgie range of ILVE, the Italian brand you can read more about in the story behind ILVE.
What is a built-in oven exactly?
A built-in oven is designed to sit in a kitchen cabinet, tall unit or undercounter housing, with a front that lines up with the cabinet fronts around it. That sets it apart from a freestanding range cooker, where the oven sits under a hob in its own housing. A built-in oven is placed at eye height or under the worktop and is connected separately from hob and extractor. At XARO the range is in the built-in oven collection, with hot-air and combi oven variants from ILVE.
Which types of built-in ovens are there?
Most built-in ovens use hot air: a fan spreads the heat evenly, for baking, roasting and several trays at once. A combi oven adds a microwave so you can reheat, defrost and cook quickly with the usual oven functions in one appliance. That makes a built-in combi oven a stand-in for both the oven and a separate microwave.
- Hot-air built-in oven - baking and roasting, often the largest cavity at the same niche size.
- Combi oven with microwave - oven plus reheat and defrost in one niche; popular in compact kitchens.
- Combi steam oven - hot air with steam, useful for vegetables and fish. Still a niche in the Netherlands.
For most households the real choice remains a standard hot-air built-in oven versus a combi oven with microwave.
Built-in oven, combi oven or a separate microwave: what do you pick?
Pick a standard built-in oven if you already have a separate microwave or prefer not to give up oven space: a combi oven uses a little more internal depth for the microwave module, so the cavity is slightly smaller at the same niche size. Pick a combi oven if you want the separate microwave out of the kitchen and still want to reheat or defrost quickly, without fitting a second appliance. A separate microwave stays the cheapest and most flexible option, but it costs an extra niche or worktop spot and an extra socket.
| Hot-air built-in oven | Combi oven with microwave | Separate microwave | |
|---|---|---|---|
| Functions | Bake, roast, hot air | Oven plus reheat and defrost | Reheat and defrost only |
| Cavity | Largest at the same niche | Slightly smaller due to the microwave module | No oven cavity |
| Space | One niche | One niche, no extra appliance | Extra niche or worktop |
| Fits | Lots of baking, microwave already there | Compact kitchen, leftovers on weekdays | Small budget, loose setup |
In practice a household that cooks for several people in the evening often picks a standard built-in oven plus a separate microwave. A combi oven is more popular in compact kitchens or if you reheat a lot on weekdays and bake or roast more at the weekend. For a tidy kitchen a combi oven such as the ILVE 645NHSW1 is usually the practical choice: one appliance, one connection, three functions.
Built-in oven or range cooker with oven: what is the difference?
A range cooker combines hob and oven in a freestanding appliance; a built-in oven is independent of the hob and goes into a tall unit or undercounter housing. A range cooker suits an open kitchen without a fixed cabinet wall around the appliance; a built-in oven suits a closed run where the hob sits separately in the worktop. Unsure? The ILVE range-cooker range shows a freestanding model with hobs and oven for comparison.
What niche width does a built-in oven need?
60 centimetres is the usual niche width for built-in ovens in Dutch kitchens, and most cabinet walls are built for that. At XARO there is also a larger ILVE model, the OV91NT31 with a 90 centimetre niche and 110 litres, next to the more compact 645NHSW1 combi oven. Check not only width but also install depth and ventilation space around the appliance; those sit on each product page. Always measure niche width and depth yourself before you order. Unsure about the size? Contact XARO for advice.
Connecting a built-in oven: what to watch
Most ILVE built-in ovens at XARO run on a single-phase supply of about 2.95 kW, comparable to a heavy kitchen circuit. That usually needs its own group in the consumer unit; a qualified installer checks whether the existing cable and group can take the load or whether a new group is needed. Always have that installer make the fixed connection, especially when you replace an older built-in oven with a different rating. Check the exact power per model on the product page, because hot-air and combi versions can differ.
Colour and finish: what fits your kitchen?
The ILVE Nostalgie line comes in finishes such as matte graphite and stainless steel, with the same retro controls and brass or chrome accents across the line. Pick the finish from your kitchen fronts and the other appliances, hob and extractor, so the built-in oven matches the tall unit or worktop instead of standing on its own.
Need advice? How to pick the right built-in oven at XARO
Unsure between a hot-air built-in oven and a combi oven with microwave, or between 60 and 90 centimetres? XARO gives personal advice for your kitchen and delivers free across the Benelux. See the full range in the built-in oven collection or the combi oven collection, or get in touch if you are unsure.
ILVE Nostalgie built-in ovens
90 cm hot-air built-in oven and compact combi oven with microwave. Current price and stock on the product page.