last few weeks upstairs got 28+ degrees during the day and evening, quite hard to get the little one settled for nap or sleep.

had a quote from smart vent, 4 outlet positive pressure ventilation for 3.2k, summer feature (selectively draws air from outside rather than ceiling) plus 800.

consider (assuming the same brand smartvent) kit of 2 outlet + summer feature sells for 2k in bunnings, the price is not too bad consider labour, and some ducting between upstairs and ground level.

but the consultant said the summer feature won't reduce the room temperature, just get rid of the stuffiness.

wife isn't impressed with that, or a 200 mm pipe running exposed inside the wardrobe to send air to ground floor ceiling outlet.

at that price she'd rather get a heat pump installed upstairs, and probably only cost half as much.

so, what's your opinion?

is (any) positive pressure ventilation worth it these days?

I liked the idea of filtered air (hey fever), some comfort during summer, and reduced condensation during winter. but would we be a better position with a heatpump and possibly retro fit double glazing upstairs? thanks.