COMFORT Circulator Pumps

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