The COMFORT Series includes all low‑power ECM circulators for domestic hot‑water recirculation. These pumps are designed for quiet operation, minimal energy use, and fast hot‑water delivery.
Included families: COMFORT (global + NA), ALPHA HWR, ALPHA Comfort System
Series Purpose
Potable‑approved ECM circulators for domestic hot‑water recirculation in homes with or without a return line.
Shared Construction
- ECM permanent‑magnet motor
- 5–7 W (COMFORT) or low‑power ALPHA variants
- Brass/EcoBrass or stainless housings
- Water‑lubricated bearings
- Horizontal shaft
- Temperature‑based control modes
- AUTOADAPT on select models
COMFORT (Global + NA) — Ultra‑Low‑Power DHW Recirculation
Hydraulics: Low‑head models (15‑14 Intl, 10‑16 NA)
Motor: ECM • 5–7 W
Control Modes:
- Continuous
- Temperature
- Timer (TDT/TU)
- Temperature+
- AUTOADAPT (TA)
- Vacation
- Disinfection
Applications: Small/medium homes with return line
Not for: Heating systems, tankless systems without flow verification
ALPHA HWR — DHW Recirculation (Return Line)
Purpose: Higher‑performance DHW recirculation with advanced control.
Control Modes: Temperature • Timer • AUTOADAPT • Vacation • Disinfection
Materials: Stainless/bronze
Applications: Homes with return line
Not for: Hydronic heating
ALPHA Comfort System — DHW Recirculation Without a Return Line
Purpose: Retrofit solution using a bypass valve under the sink.
Control Modes: Temperature • Timer • AUTOADAPT • Vacation • Disinfection
Applications: Homes without return lines
Not for: Multi‑branch plumbing, heating systems
Best‑Fit Summary
- COMFORT: Small/medium homes with return line
- ALPHA HWR: Higher‑performance return‑line DHW
- ALPHA CS: Retrofit DHW without return line
