h2x User GuideUser Guide

Energy Usage

Heating Degree Days & Cooling Degree Days

These numbers are automatically provided based on the project’s Addressand the Base Temperature

You must Refresh after changing the project Address.

You can also override these values by entering your own number.

EPC (Energy Performance Certificate)

For use in the exports:

  • In Draft - does this estimate relate to a new build or proposal for extension or reduction in size of an existing building?

  • EPC No. for Building - enter in the EPC number

Heating System Fuel

Specify the main fuel type for heating (e.g., Gas, Oil, or Electric) to evaluate the existing system’s cost and performance (in the export reports).

Hot Water Heated By

Specify the main fuel type for hot water (e.g., Gas, Oil, or Electric) to evaluate the existing system’s cost and performance (in the export reports).

Age of Existing System

Choose the age of the existing system from the ranges available.

This is the oldest existing system among the system's heat pumps and domestic hot water cylinders, and it is used to evaluate the existing system’s cost and performance (in the export reports).

Electricity Cost per kWh

Input the Electricity Cost.

This is used to estimate the system’s operating expenses based on energy use and is included in the report exports.