Nuaire Drimaster Eco Heat Positive Input Ventilation Unit With Integral 400W Heater Comes with a hygrometer for monitoring humidity levels around the house. Style may vary. The outstandingly popular Nuaire Drimaster Eco Heat positive input ventilation (PIV) unit includes a 400W heater to ensure you keep the mould out of your home whilst you keep the warmth in. Excellent value for money for a whole house ventilation unit. Compatible with optional sensors & controllers 4 Way Switch - DRI-ECO-4S Humidity Sensor - DRI-ECO-RH CO2 Sensor - DRI-ECO-CO2 Remote Monitoring - DRI-ECO-RM Condensation Dampness Is A Fast Growing Problem! It is estimated that the one in five houses in the UK are poorly ventilated. Leading to problems with streaming windows, mould growth and poor indoor air quality. Tenant lifestyles are a major factor. Average family produces up to 10 litres of water per day. Simply by cooking, washing and bathing. Condensation Season During the winter you are more likely to dry clothes inside and keep windows closed so heat is not wasted. Excess moisture is absorbed in to the air. It naturally travels to the coldest part of the house and condenses on cool surfaces such as windows and walls. Homes that have cold spots or are not properly heated due to fuel poverty are premed to condensation dampness. So What Is The Solution? The most effective way to solve a condensation and mould problem once and for all is by increasing the level of ventilation in your property. Nuaire Invented Piv Over 40 Years Ago It has become the most popular alternative method of low energy, cost-effective ventilation! 7 Year Warranty! Take action and change health of your family and home, people just like you and me.