Siemens built-in fridge freezers here are all fully integrated. Each one sits behind a furniture door that matches your kitchen units, so it blends in with the cabinets. The range covers the iQ100, iQ300 and iQ500 series, and most models are frost free, which you can browse in Siemens built-in frost free fridge freezers. One iQ100 model uses Low Frost instead. This reduces ice build-up in the freezer, so you defrost less often, though you still need to do it now and then.

The storage split is the first choice to make. Most models are 70/30, with roughly 184 to 215 litres of fridge space above 70 to 76 litres of freezer, which suits households that buy fresh food often. The 60/40 models are larger, with around 285 litres of fridge and 98 litres of freezer. If you keep more frozen food, there is also a Siemens 50/50 fridge freezer. The hinge type matters too. A fixed hinge attaches the furniture door directly to the appliance door so the two move as one. A sliding hinge lets the furniture door glide on runners as it opens.

Extras vary by model. Some iQ300 models have a hyperFresh box with humidity control to help fruit and vegetables keep longer, and the 60/40 models are internet connected. Energy ratings are D or E. Start with the split that matches how you shop, then check whether your kitchen suits a fixed or sliding hinge. If you are open to freestanding, compare Siemens freestanding fridge freezers.