GREENLAND, N.H. — Zehnder America announced it is now locally sourcing in the United States both its new ComfoFlex ducting and register boxes as part of its comprehensive approach to providing a heat ...
Last week I described our state-of-the-art Zehnder heat-recovery ventilator (HRV), explaining its various features and specifications. This week I’ll review what should be a critical step in the ...
Last week I reviewed some of the general strategies used for ventilating buildings -- or not. This week, I’ll zero in on the types of balanced ventilation in which heat is recovered from the outgoing ...
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