If you can’t connect a tumble dryer to an outside vent, a condenser model—either standard or heat pump—can be installed without an external connection, as Que Choisir Ensemble explains. To choose between the two, compare energy consumption and cycle times on a like-for-like basis, then check the room, water drainage and compatibility with your washing machine if you’re planning to stack the appliances.
If your room doesn’t allow you to connect an appliance to the outside, condenser tumble dryers—with or without a heat pump—can meet this installation requirement, according to Que Choisir Ensemble. A vented model, on the other hand, needs suitable access to the outside.
If an indoor clothes airer takes up space in your home, where you put your tumble dryer deserves just as much thought as the appliance itself. For air-drying clothes indoors, ADEME recommends a large, well-ventilated room or one with suitable extraction. This guidance is not a promise about how a tumble dryer will perform.
Stacking your appliances can free up floor space, provided you confirm that both models can be stacked and choose a compatible stacking kit. Bosch advises checking the manuals; Electrolux also specifies depth requirements for some kits.
Start with the limitations of your room, then compare the features of models that can actually be installed there.
| What to consider | What to check | Your needs |
|---|---|---|
| Access to the outside | Check whether there’s a suitable opening or vent. According to Que Choisir Ensemble, condenser models don’t need an external connection, unlike vented models. | I want to dry clothes indoors without connecting the appliance to the outside. |
| Installation room | Check the manual for ventilation requirements, clearances and permitted locations. Measure the available space, including room to open the door. | Space is limited, and I need to be able to install and use the appliance in the room I have in mind. |
| Energy consumption and cycle time | Compare the energy label and product details for the exact model, then check cycle times for comparable loads. In its testing, Que Choisir Ensemble reports energy consumption and cycle time per kilogram of laundry dried. | If I run cycles frequently, I want to consider electricity use rather than choosing based on the advertised cycle time alone. |
| Water and maintenance | Check whether water collects in a tank or can be drained through a compatible outlet, and whether the necessary hose or kit is included. Also check the model’s maintenance instructions. | I’d like to know before buying whether I’ll need to empty a tank or arrange a connection. |
| Capacity and stacking | Check that the capacity of the model you choose suits your laundry loads. If you plan to stack the appliances, confirm that both can be stacked and check which models or dimensions the kit supports. | My tumble dryer needs to suit the laundry I wash and, if I’m placing it on top of my washing machine, that specific installation. |
Water extracted from your laundry needs to be collected or drained away, and maintenance requirements vary by appliance.
Check the manual for the exact model to find out about the water tank, drainage options and filter maintenance.
Direct drainage may require an optional kit, as it does with the Electrolux EDHF5841EC.
Cycle time or energy consumption on its own won’t let you compare two different load sizes. Que Choisir Ensemble reports these measurements per kilogram of laundry dried in its testing.
Use the product details for the exact models and, when comparing test results, make sure they come from the same testing protocol.
Width alone doesn’t confirm that the models can be stacked or that the kit is compatible. Electrolux specifies a depth range for its STA8GW4 kit and requires you to check compatibility.
Check the manuals for both appliances and the kit’s compatibility list before planning a stacked installation.
You may need to buy a compatible kit as well as the two appliances.
According to Que Choisir Ensemble, a vented tumble dryer must be connected to the outside, so it isn’t suitable if there’s no usable opening or vent.
In that case, consider condenser models and check their installation requirements in the manual.
These examples relate to specific models; their features don’t necessarily apply to other appliances from the same brand.
A brand to consider if you’re looking for a heat pump model and manufacturer guidance on potential stacking.
A brand whose product details for some models spell out capacity, standardised energy consumption and drainage options.
A brand to consider if you’re looking for a heat pump model and the installation requirements of your chosen model suit your room.
These four condenser tumble dryers include three models described as having a heat pump. They’re worth considering if you’re looking for an appliance that doesn’t need a usable external vent, provided you check the installation requirements for each model.
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This 8 kg model could be an option for drying laundry without an external vent; its product details mention the option of direct drainage. Check the connection requirements, dimensions and manual before planning a stacked installation.
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Its stated 8 kg capacity could suit you if it matches the loads from your washing machine. Before choosing a spot for it, check the manual to see how condensed water is collected or drained, along with the dimensions and installation requirements.
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This 8 kg condenser tumble dryer is described as having a water collection tank, so bear in mind that you’ll need to empty it as part of everyday use. Check the exact product specifications before comparing it with a heat pump model, and make sure you have the necessary clearance in the room.
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This heat pump model could suit you if you’re looking for a tumble dryer that doesn’t need an external vent. Its capacity is listed as both 8 kg and 10 kg in the product information, so confirm the figure for the exact model before deciding whether it suits your loads. Also check how it handles water and what’s required for installation.
No. According to Que Choisir Ensemble, condenser models—including heat pump models—don’t need an external connection, while vented models do. However, you should still follow the room and clearance requirements in the manual.
Not if the model allows direct drainage and the connection is compatible with your setup. For example, Electrolux lists a 5.32 L tank and an optional drainage kit for the EDHF5841EC, while Bosch mentions a water drainage hose for the WTH8520BFR. Check what’s included with the model you’re buying.
No. Check the manuals for both models to confirm they can be stacked, and choose a kit that’s explicitly compatible. Bosch recommends checking this; for its STA8GW4 kit, Electrolux specifies an acceptable depth of 47 to 60 cm for front-loading appliances and advises checking compatibility.
Compare the information for the exact models and make sure the measurements are based on the same load size. In its tests, Que Choisir Ensemble reports energy consumption and cycle time per kilogram of laundry dried, so a cycle time recorded for a different load isn’t a like-for-like comparison.