What Both Systems Have in Common
Before we look at the differences, it's important to understand what Drimaster and Flatmaster share. Both are Positive Input Ventilation (PIV) systems designed to permanently solve condensation, damp, and mould problems. Both work by gently introducing filtered, fresh air into your home to dilute humidity and displace stale, moisture-laden air. Both cost approximately 25p per week to run and require only a filter change every five years.
The key difference between the two systems is where they're installed and where they draw their air from, and this comes down to the type of property you live in.
Drimaster: For Houses With a Loft
The Drimaster is designed for houses and bungalows that have a loft or attic space. It's installed in the loft, typically on the ceiling at the top of the stairs, where it draws fresh air from the roof space. The loft air is naturally drier and slightly warmer than outside air, making it an ideal source for ventilation.
The unit sits discreetly in the loft with only a small, unobtrusive diffuser visible on the hallway ceiling. From there, the filtered fresh air is distributed throughout your home via the natural airflow of your hallway and landing. It's a clean, simple installation that typically takes just a few hours.
Choose a Drimaster if: You live in a house, bungalow, or any property with a loft space. This covers the majority of homes in Northern Ireland.
Flatmaster: For Flats and Apartments
The Flatmaster is designed for flats, apartments, and homes without a loft space. Since there's no attic to draw air from, the Flatmaster is mounted on an external wall and draws fresh air directly from outside. The air passes through a filter before being gently introduced into your living space.
The Flatmaster is compact and can be installed in a cupboard, utility area, or on an external wall. It's specifically engineered for the unique challenges of flats and apartments, which often have limited ventilation options and are particularly prone to condensation, especially when multiple flats share a building with shared walls and limited airflow.
Choose a Flatmaster if: You live in a flat, apartment, or any property without a loft. This includes ground-floor flats, mid-terrace properties with no accessible loft, and homes with converted attic spaces.
Key Differences at a Glance
- Installation location: Drimaster is installed in the loft; Flatmaster is mounted on an external wall or in a cupboard.
- Air source: Drimaster draws air from the loft space; Flatmaster draws air from outside.
- Property type: Drimaster is for houses with lofts; Flatmaster is for flats and homes without lofts.
- Visibility: Drimaster has only a small ceiling diffuser visible; Flatmaster has a compact wall-mounted unit.
- Effectiveness: Both are equally effective at solving condensation and mould. The choice is purely about which fits your property type.
Which One Is Right for Your Home?
The decision is straightforward: if your home has a loft, you need a Drimaster. If it doesn't, you need a Flatmaster. During a free home survey, the property is assessed to confirm which system is appropriate and where it should be positioned for maximum effectiveness.
It's worth noting that some properties, such as houses with loft conversions, may not have enough loft space for a Drimaster. In these cases, a Flatmaster can be used instead. The survey will identify any such considerations and recommend the best approach.
Both Systems Deliver the Same Results
Regardless of whether you need a Drimaster or a Flatmaster, the outcome is the same: clear windows, no black mould, fresher air, and a healthier home environment. Both systems work automatically, 24/7, and both come with the same low running costs and minimal maintenance requirements.
Not Sure Which You Need? Get a Free Survey
The easiest way to know which system is right for your home is to book a free, no-obligation survey. You'll get expert advice, a clear recommendation, and a transparent quote, with no pressure to proceed.