Choose a system that will stop condensation in your home or call our Advice Line 0800 288 4046
PIVs, HRVs and dehumidifiers all have a role to play.
Positive input ventilation (PIV)
All PIVs work to combat and eliminate condensation in the same way - they introduce fresh, dry, filtered air into the home and expel damp, stale air creating an artificial air-flow. The PIV reduces the amount of water in the air so condensation cannot occur in your home. The home is free of black mould, streaming windows and unhealthy pathogens which build up in an unhealthy house. They all cost the same to instal - circa £150 for an electrician or DIY if compentent.
Standard House - cheapest solution - Dri-Eco-HC* - loft mounted with hall control and cheapest to run
Rental property - Cheapest for a landlord and best for tenants - Dri-Eco-HL which can only be adjusted in the loft. Keep loft locked to stop tampering
Bungalow - Dri-Eco-Heat-HC* - Vent-Axia Pozidri heat - ceiling control and air tempering to maintain comfort when the roof is cold.
Larger house- Dri-Eco-Heat- HC* - Vent-Axia Pozidri heat - ceiling control and air tempering to maintain comfort when the roof is cold.- ceiling control and air tempering to maintain comfort when the roof is cold. Not so important to have the heat element as the incoming air is far from the occupiers.
Holliday home - Dri-Eco-Heat-HC + 4S - you need to be able to switch off the heat when you are not in the building but maintain the airflow to keep the damp at bay.
Flat or apartment with no roof - FLATMASTER (you must order a right or left model) - Vent-Axia Pozidri Compact - - both are can temper cold air - we find customers hate the none heated version.
*Optional remote Wi-Fi switch to turn the heat on/off as required on all Nuaire HC models
Heat recovery ventilation (HRV)
All HRVs work by exchanging damp air for dry air and maintaining about 80% of the heat
Small flat, Bedsit, single room, basement room - Mori 100 HRV this model will fit into a 100mm hole - damp , stale air is extracted for 70 seconds and replaced by new reheated dry air for 70 seconds. the flow is very slow and quiet . They can be bought with a switch to offer more control. Or the Vent-Axia Tempra HRV
Dehumidifiers work by taking in stale/damp air and extracting the water vapour thus reducing humidity. They are not genreally as powerful as PIVs
Small flat or apartment. Conservatory, garage,store,basement - Meaco compressor type dehumidifiers with Hepta filters to purify the air - Meaco 12L for 3 bedroom home and Meaco 20L for 5 bedroom home. Winner of many Which? awards for effectiveness, ease of controls and low power use
Best wishes from Stephen Linley-Shaw (Dryhomes damp consultant)