﻿Rinnai introduces condensing continuous-flow water heaters
The latest additions to Rinnai’s range of continuous-flow water heaters are the HDC1500 and HDC1200 condensing models. These compact wall-mounted units can be fuelled by natural gas or LPG. Condensing models have a gross operating efficiency of up to 95%, making them 12% more efficient than their conventional counterparts. Output is up to 56 kW for natural gas and 67 kW for LPG. Modulation enables them to be turned down to 2.6 kW.
Units are available for internal and external installation.
Rinnai water heaters are based on a single self-contained, interchangeable unit that can be linked to meet higher demands. They can also be incorporated with stainless-steel buffer vessels. For example, six HDC heaters linked to a buffer vessel could meet a demand of 6500 l/h, with temperature controlled to ±1 K, and also give cover for servicing or breakdown.
A concentric flue system made of plastic material is available.