much prefer my condensor dryer and the extra price would be a better investment than adding an ugly vent and the associated labour and disturbance to the wall cladding inside and out...but keep in mind that the condensor dryer is too heavy to hang on the wall so needs to be installed under a counter..next to a matching front loader for a streamlined look? with wall space to have a hanging rail to drip dry many of your clothes on hangers to minimise time in the dryer

I have a condenser dryer and just letting you know it still creates quite a bit of moisture in the air if there is no ventilation.

I have been very happy with the condenser dryer we have. It dries well and seems gentler on fabrics than our old dryer. It also makes the house a lot less humid. We have it installed on top of our washing machine with an approved washing machine/ dryer stacker.

I have a Bosch condenser dryer and it produces no condensation at all, even with the laundry door closed. It sits on a bench top and the washer is underneath. I did not know they could not be wall mounted.

there may be other brands that can be wall or bench mounted but the ones i looked at were too heavy and i'm quite happy with mine on the floor but there may be others that can be stacked with matching washers

We would not go back to conventional dryer after having a condenser. We have installed a bathroom exhaust fan in the laundry to take out excess heat/moisture and an Artweger wall mounted airer in front of/above dryer takes care of delicates. Very efficient.

Heat pump condenser dryer is the way forward. Ours has a 7 star energy efficiency rating, but cost more to purchase upfront. It does release heat in the laundry, which is great if you have a few damp things on hangers. We also ‘plumbed’ ours into the sink so we do not need to empty the water reservoir after use. Last thing- the one we purchased was stackable!

We have a new heat pump condenser dryer and after learning how to use it properly - I love it. It was more expensive than others but we got it on sale. We too have plumbed the drain but you need to empty lint filters every time as so much is cleaned off (we have cats!). Ours is German 8* and on floor until we put in cupboard.

Re stacking, wall mounting etc,
Heat pump condenser dryers can’t be wall mounted or mounted in a bench. They are too heavy. Some can be stacked. Usually you’ll need a stacking kit to do this. Some can only be stacked in a washer of the same brand. This is the case with the 9 star LG.

I have a Meile heat pump condenser dryer, it is really efficient to run and I have no moisture in the air and only a very small amount of heat. I chose one with a drainage tube so I never need to empty the liquid out. This is great. I wish they had self cleaning filters though. There are 3 to clean. 2 after each use and 1 about once a month. I use my dryer every day.

You could add a ceiling extractor which ducts out under the eaves, using flexible ducting