Passyfier® 230 - Sleeved Dehumidifier Vent - Rustic/Condensation Control

Product Information

Use the compatible wind blast cowl with every vent in exposed or coastal locations. Use in conjunction with mechanical extraction in kitchens and bathrooms. Use the compatible wind blast cowl, with every vent in exposed or coastal locations. Use in conjunction with mechanical extraction in kitchens and bathrooms. Passyfier 140 Core Vent: With a water vapor transmission capacity of up to 1.4 liters per 24 hours, this vent requires a 162mm diameter core and is suitable for rooms with a floor area not exceeding 10m². Tip: Apply a bead of sealant around the perimeter of the opening to ensure a water-tight installation. The external diameter of the tube is 104mm so the core should be cut larger eg. 4.25” (107mm). Permagard - Condensation Control Experts

Silent Operation: Passyfier dehumidifier vents are non-mechanical, meaning they have no moving parts, making them completely silent and unobtrusive. Passyfier vents have no moving parts, making them incredibly silent and energy-efficient. Unlike electric or desiccant dehumidifiers, they don't require any electricity to function, relying instead on natural pressure differences. programmes or installed directly in newbuild. A typical house needs about four/five Passyfier units. Quite Allow one vent per cupboard / wardrobe space or box room with a maximum floor area not exceeding 5m². Integrated Fly Screen: Passyfier vents come equipped with an internal white plastic grille with an integrated fly screen to keep insects at bay.

mould control

water vapour produced in a short time scale in kitchens and bathrooms without the additional use of mechanical PIV did not directly save any energy but may save a little when compared to conventional extraction providing the same level of ventilation exchange. This is because roof space temperatures are usually a minimum of 3OC higher than outside.

Ensure that there is a good seal to the loft hatch. Many hatches are very poorly sealed and allow moist air to migrate into the roof space. Customizable Appearance: The external cowls of Passyfier Vents come in a range of colors, allowing them to match your home's exterior appearance. Versatility: Passyfier vents come in various sizes, making them suitable for installation in habitable rooms such as bedrooms and living rooms.Input ventilation was found to be effective in reducing relative humidity levels by around 10%RH in the test house, even when internal doors were closed. Vapour pressures reduced overall by 0.2kPa. The unit was shown to be more effective upstairs than downstairs. typically cold foggy British winter´s day (a green light for condensation) may have an outside temperature of 5°C Until recently very little research had been done to prove the effectiveness of PIV and yet it widely specified. The BRE recently set up a parallel study to investigate the performance of PIV systems and carried out trials in their Watford test house and field studies in 16 Welsh properties. The study concluded with the following key findings:

https://www.insulationsuperstore.co.uk/product/felt-lap-vent.html?msclkid=90848a0451d111343a62e9a446445ea3&utm_source=bing&utm_medium=cpc&utm_campaign=%5BAll%20Products%5D%20%5BCatch%20All%5D%20%5B14.02.19%20RL%5D%20%5BLP%5D%20PLA&utm_term=4579465931580105&utm_content=All%20Products The moisture vapour pressure within a dwelling is always higher than the outside pressure therefore there will always be an escape of moisture vapour by the diffusion process through the Passyfier Vent. Note: Passyfier Vents are used as an aid to help control humidity and are NOT to be used as a method of providing ventilation to any gas, oil, or solid fuel appliance. Passyfier 100 Core Vent: With a water vapor transmission capacity of up to 1 liter per 24 hours, this vent requires a 132mm diameter core and is suitable for rooms with a floor area not exceeding 7m².occupied building than on the outside . This pressure is completely independent of that in the air. For example, a The environmentally friendly Perma-Vent contains no moving parts and requires no maintenance. It works on the scientific principle that when the room temperature and humidity are greater internally than externally, moist air will be ventilated outside the building due to vapour air differences. The Passyfier Sleeved 230 Vent provides an opening on a section of wall normal to the airflow direction with an effective area well in excess of the minimum requirement. Airflow through the opening is controlled automatically by the intervening mineral wool slab and thereby avoids undue draughts. The Passyfier Core 140 provides an opening on a section of wall normal to the airflow direction with an effective area well in excess of the minimum requirement. Airflow through the opening is controlled automatically by the intervening mineral wool slab and thereby avoids undue draughts. The diffusion process is slow compared with mechanical ventilation and would not cope with the copious amount of water vapour produced in a short time scale without the combined use of mechanical ventilation in kitchens and bathrooms.