Problems it solves.
MVHR is the right answer for a specific set of indoor-air problems, and a wrong answer for several others.
- Condensation on windows every morning
Streaming water on glass every morning in winter, together with Damp curtains and wet sills
- Mould in the bedroom
Black spotting in upper corners or behind furniture, together with Musty smell on bedding or in the wardrobe
- High humidity throughout the house
Hygrometer reading consistently above sixty per cent, together with Damp washing taking days to dry indoors
- Air uncomfortably dry in winter
Dry skin and lips through the heating season, together with Static shocks on door handles and clothes
- Stale or stuffy indoor air
Headaches indoors that clear when you go outside, together with Cooking smells linger for hours
- Stuffy upstairs rooms
Hot, airless feeling at the top of the house in the afternoon, together with Bedrooms feel oppressive before sleep
- Bathroom extractor not coping with steam
Mirror remains foggy long after the shower, together with Wet wallpaper or peeling paint near the ceiling
- Allergies or asthma worse indoors
Eyes itchy or nose congested in the morning, together with Symptoms easing within minutes of going outside
- House feels damp every winter
Beds and clothes feel slightly damp, together with Walls feel cold even when the heating has been on for hours
- Damp, mould or condensation
Black spotting on cold walls, together with Window condensation in winter
- Living room stuffy by the evening
Air feels heavy after dinner, together with Television and electronics raise room temperature noticeably