Komfovent Domekt R 300 V heat recovery ventilation unit

Domekt R 300 V description

Komfovent Domekt R 300 V is a heat-recovery ventilation unit (HRV) that continuously supplies fresh air throughout the building while recovering heat from the exhaust air. Komfovent is a Lithuanian manufacturer known for its A+ energy class units and top-tier C6 smart controller. The Domekt R 300 V model is designed specifically for medium-sized private houses and larger apartments, where both energy savings and quiet operation matter.

How Komfovent Domekt R 300 V works

The unit draws fresh air from outside while simultaneously extracting stale air from the rooms. A counterflow plate heat exchanger transfers heat from the exhaust air to the incoming fresh air without the two streams mixing. The result is fresh, filtered supply air that in winter arrives at almost room temperature. This significantly reduces heating costs — often 30–50% compared to natural ventilation.

Energy efficiency and indoor climate

Komfovent Domekt R 300 V suits objects of up to 120 m² and is designed to deliver the highest possible heat recovery. Supply air is filtered — typically with an F7 or better filter — which stops pollen, dust and fine particles (PM2.5). It is especially valued by allergy sufferers and families with young children. Filtered air keeps indoor CO₂ levels low, reduces moisture in bathrooms and kitchens, and prevents mould.

Control and automation

This means the unit runs only as much as needed — saving electricity and extending filter life.

Why choose Komfovent Domekt R 300 V

Komfovent is well known on the Estonian market for quality, durability and long-term spare-parts availability. Domekt R 300 V is a popular choice thanks to its strong price-to-performance ratio and easy maintenance. We sell the unit together with professional installation across Estonia, including design, ductwork, commissioning, balancing and ongoing service and filter changes.

Domekt R 300 V technical specifications

Who is Komfovent Domekt R 300 V for?

Well suited for properties with up to 120 m² of living space.

• Private house 80–120 m²
• Large 4-room apartment
• One section of a terraced house
• Small commercial space

Frequently asked questions