WattSize User Guide

Welcome to WattSize, the heat pump sizing and specification tool. This guide will help you create projects, calculate heat loss, select heat pumps, and generate quotes.

Use the sidebar to navigate between different topics.

What is WattSize?

WattSize is a professional tool for:

Heat Loss Calculations - Calculate heat loss for domestic and commercial buildings following MCS guidelines
Heat Pump Selection - Choose the right heat pump model based on your requirements
Quote Generation - Generate complete Bill of Materials with pricing
PDF Reports - Create professional reports for customers

Quick Start

Create a new project

Click "New Project" to start

Enter project details

Add customer info, address, and building details

Calculate heat loss

Add rooms or enter a known heat loss value

Select a heat pump

Choose from recommended models

Generate quote

Review BOM and download reports

WattSize User Guide

What is WattSize?

Quick Start

WattSize Guide