VENTI is proud to to offer comprehensive Mechanical Ventilation with Heat Recovery (MVHR) design services. Our approach encompasses the entire MVHR journey: from initial design and material supply to installation, commissioning, and ongoing maintenance.
Complete MVHR Solutions from Design to Maintenance
VENTI delivers integrated Mechanical Ventilation with Heat Recovery (MVHR) systems combining precision engineering with practical installation expertise. Our turnkey service manages every stage from initial feasibility analysis to post-installation optimisation, ensuring systems achieve optimal airflow efficiency whilst maintaining architectural integrity.
Why Partner with VENTI?
Comprehensive System Integration
Our team of certified ventilation specialists oversees your project through three critical phases:
- Design Validation
- Thermal modelling using IESVE software
- Ductwork simulations for noise <25dB(A)
- Pressure loss calculations (±5% accuracy)
- Technical Coordination
- Material specifications meeting SAP Appendix Q
- Builder engagement for structural integrations
- Electrical load balancing with existing systems
- Performance Assurance
- Post-installation airflow verification testing
- Seasonal calibration services
- Remote monitoring options
Engineering Partnerships
Through our network of certified installation experts, we ensure:
- Practical Design Review: All plans undergo three-stage validation against:
- BS EN 13141-6:2021 compliance
- Access requirements for maintenance
- Future-proofing for smart home integrations
- Material Sourcing: Direct procurement from manufacturers including:
- Semi-rigid ducting (75mm-125mm diameters)
- Anti-microbial insulation wraps
- Low-profile ceiling valves
- Quality Control: Installation audits at critical stages:
- First fix duct positioning
- MVHR unit commissioning
- Final airflow balancing
MVHR System Fundamentals
Optimised Ventilation Strategy
Our designs typically achieve:
- Heat recovery efficiency: 85-92%
- Specific Fan Power: <0.45 W/(l/s)
- Air change rate: 0.3-0.5 ACH
Adaptive Climate Control
Intelligent systems feature:
- Automatic summer bypass activation (18°C threshold)
- Frost protection down to -15°C
- Pollen filtration (ePM1 80%)
Project Compatibility
We provide bespoke solutions for:
- Passive House certifications
- Listed building constraints
- Multi-zone commercial developments
Begin Your MVHR Journey
Our five-stage consultation process:
Understanding MVHR
What is MVHR?
Mechanical Ventilation with Heat Recovery (MVHR) is a system designed to improve indoor air quality while retaining heat. It operates on the principle of extracting moist, stale air from wet rooms, recovering the heat from this air to warm the incoming fresh air. This process not only enhances ventilation but also contributes to energy efficiency.
The Functionality of MVHR
A heat recovery ventilation system effectively removes excess moisture and stale air while conserving heat. By utilising the warmth from extracted air, it supplies clean, filtered air back into your home. This method significantly reduces heating and cooling demands, making it an increasingly popular choice for energy-efficient buildings.
Can MVHR Heat a Home?
While MVHR systems recover heat from wet rooms and redistribute it to habitable spaces, they are not a primary heating source. Instead, they work in conjunction with your existing heating system, enhancing energy efficiency without compromising warmth.
Summer Bypass Feature
During warmer months, MVHR systems can divert incoming air away from the heat exchanger, preventing unnecessary heating and maintaining comfortable indoor temperatures.
MVHR vs. Other Systems
- MVHR vs. MEV: MVHR provides a balanced system, offering both extract and supply ventilation, while Mechanical Extract Ventilation (MEV) focuses solely on extraction.
- MVHR vs. PIV: Positive Input Ventilation (PIV) systems draw in fresh air actively, allowing stale air to escape passively, whereas MVHR systems utilise a heat exchanger for improved efficiency.
The Role of the Heat Exchanger
A heat exchanger is a vital component of the MVHR system, transferring heat between two mediums to maximise energy efficiency.
When is MVHR Recommended?
MVHR systems are ideal for energy-efficient properties with controlled ventilation needs. They are particularly beneficial in situations where external noise, air quality, or high humidity levels are concerns. By providing consistent ventilation, MVHR systems help maintain a comfortable and healthy indoor environment.
