Choosing the Right PIV Unit for Your Property

Positive Input Ventilation (PIV) units are a proven way to reduce condensation, damp, and mould, while improving indoor air quality. But with different types available, it can be difficult to know which system is right for your property.

Here’s a guide to help you compare the main options and make the right choice.

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Key Types of PIV Units

1. Loft-Mounted PIV Units

• Best for: Houses and bungalows with loft space. • How it works: Draws air from the loft (or directly outside via a duct), filters it, and supplies it into the property through a central ceiling diffuser. • Advantages: Hidden installation, quiet operation, whole-home coverage. • Considerations: Requires loft space and access.

1. Corridor/Wall-Mounted PIV Units

• Best for: Flats and apartments without lofts. • How it works: Installed on a wall or ceiling inside the property, ducted to the outside. Supplies filtered air directly into corridors or central spaces. • Advantages: Compact and suitable for properties without lofts. • Considerations: More visible inside living spaces; careful placement required for best results.

1. Heated vs Unheated PIV Units

• Unheated units: Energy efficient and ideal for well-insulated properties where incoming air isn’t uncomfortably cold. • Heated units: Contain a small heater (typically 300–500W) that tempers cold incoming air. Recommended for older, draughty properties, or where occupant comfort is a priority. How to Choose the Right PIV Unit 1. Property Type • Loft-mounted units are the go-to choice for houses and bungalows. • Wall/corridor-mounted units are designed for apartments and flats. 2. Insulation & Comfort Levels • Well-insulated properties can often manage with unheated PIVs. • Older or draughty homes benefit from heated models for occupant comfort. 3. Occupant Needs • Landlords may prefer heated units in rental properties to reduce tenant complaints about cold air. • Homeowners sensitive to air quality (e.g. asthma sufferers) benefit from models with enhanced filtration. 4. Budget • Unheated units are cheaper to install and run. • Heated units cost more initially but can prevent comfort issues that lead to underuse.

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Final Thoughts

There’s no one-size-fits-all answer when it comes to Positive Input Ventilation. The right unit depends on your property type, insulation level, and comfort requirements.

A properly selected and installed PIV system will not only tackle condensation and mould but also provide long-term protection for your home and health.

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Switch Electrical & Mechanical Services Ltd are specialists in PIV installation — helping homeowners, landlords, and businesses across Newcastle and the North East choose the right solution for a healthier, drier environment.

📞 0191 9052723 📱 WhatsApp: 07388 439427 ✉️ switchtoday@mail.com

Frequently Asked Questions (North East UK)

What are my legal electrical responsibilities as a Landlord in Newcastle? As a landlord in the North East, you are legally required to ensure that all electrical installations in your rental property are safe when tenants move in and are maintained in a safe condition throughout the duration of the tenancy. This includes obtaining a satisfactory Electrical Installation Condition Report (EICR) every 5 years or at the start of a new tenancy. Switch Electrical & Mechanical Services provides comprehensive EICR audits for landlords across Newcastle, Sunderland, and Gateshead.

How much does an EICR cost for a standard property in the North East? The cost of an EICR depends on the size of the property and the number of circuits. Switch Electrical & Mechanical Services provides highly competitive, transparent pricing for landlords in the North East. We also offer discounted rates for landlords with multiple properties or HMOs requiring block certification.

What happens if my rental property fails an EICR? If an EICR identifies 'C1' (Danger Present) or 'C2' (Potentially Dangerous) codes, the installation is deemed 'Unsatisfactory'. Landlords have exactly 28 days to complete the necessary remedial work. Our team at Switch Electrical & Mechanical Services can provide immediate, fixed-price quotes for all remedial work following an inspection to ensure you remain legally compliant.