Recommended resources.

Access decades of research, technical reports, and design insights developed by our engineers and analysts. From in-depth studies to practical calculators and tools, this growing collection supports high-performance building design, decarbonization strategies, and policy innovation.

The main terminal building of King County International Airport (Boeing Field) in Seattle, WA, featuring a red brick façade, arched windows, a clock, and an American flag flying above against a clear blue sky.

EcoDash

Ecotope’s online performance-monitoring platform that provides clear, detailed insights into commercial heat pump water heater systems to support reliability, optimization, and widespread adoption.

The main terminal building of King County International Airport (Boeing Field) in Seattle, WA, featuring a red brick façade, arched windows, a clock, and an American flag flying above against a clear blue sky.

Ecosizer

A free tool for sizing central water heating systems based on commercial heat pump water heaters in multifamily and commercial buildings.

Stack of documents on a desk

Advanced Water Heating Specification (AWHS)
and Qualified Products List (QPL)

A performance standard developed to advance high-efficiency heat pump water heaters and support nationwide adoption of heat-pump requirements.

The main terminal building of King County International Airport (Boeing Field) in Seattle, WA, featuring a red brick façade, arched windows, a clock, and an American flag flying above against a clear blue sky.

CHPWH Design Guides

Technical guidance for designing reliable, high-performance commercial heat pump water heating systems.

The main terminal building of King County International Airport (Boeing Field) in Seattle, WA, featuring a red brick façade, arched windows, a clock, and an American flag flying above against a clear blue sky.

Technology Innovation Model

A five-step pathway for turning emerging technologies into proven, reliable, and market-ready systems.

Cistern at Stack House Apartments in South Lake Union

Cistern Sizing Tool

Quickly estimate rainwater storage needs for your project.