Discussions Mechanical systemsHeating and coolingDelivery: radiant, forced-air and decentralized Which radiant floor heat is best? Save Like Comment(3) Print Share Facebook Twitter Email T Which radiant floor heat is best? tony wolff Dec. 25, 2020Last updated: Jan. 9, 2021 Eco home promotes air radiant systems (e.g. Legalett) aren't direct electric resistance mats more efficient. Seems air and water systems use power to heat the air/water which is not as efficient? That's a question, not a statement.