I have a dilema regarding heat/smoke and carbon monoxide alarms for my house. In each of my living rooms specifically I require both a smoke and carbon monoxide alarm to which I dont want to have 2 stuck in the ceiling along with MVHR outlet. Combined offerings seem to be limited with none from Aico which seems to be a favourite on here. Nest is a combined offering but the cost puts me off as I would need to put these throughout the house to satisfy the linked system requirement, needing 6/7 puts me off.
Anyone any further suggestions?