1. What is a Combi Boiler Quote Calculator?

Definition: This calculator estimates the total cost of a combi boiler installation based on boiler size, unit cost, installation fees, and additional expenses.

Purpose: It helps homeowners and contractors budget for boiler installations by providing a comprehensive cost estimate.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Total quote (currency)
• \( S \) — Boiler size (kW)
• \( C \) — Cost per kW (currency/kW)
• \( I \) — Installation cost (currency)
• \( E \) — Extra costs (currency)

Explanation: The boiler size is multiplied by cost per kW to get base unit price, then installation and extra costs are added.

3. Importance of Accurate Boiler Quotes

Details: Proper cost estimation ensures budget planning, comparison between options, and avoids unexpected expenses during installation.

4. Using the Calculator

Tips: Enter the boiler size in kW, cost per kW, installation cost, and any extra costs. All values must be ≥ 0 except size and cost per kW which must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine the right boiler size?
A: Consult a heating engineer who will calculate based on your home's size, insulation, and hot water demand.

Q2: What's included in installation costs?
A: Typically includes labor, basic materials, and standard configuration. Complex installations may require higher costs.

Q3: What are common extra costs?
A: System flushing, thermostat upgrades, pipe modifications, or disposal of old units.

Q4: Does this include VAT/tax?
A: No, add your local tax rate to the calculated quote if applicable.

Q5: How accurate are these estimates?
A: Estimates are based on inputs. For precise quotes, consult with local installers who can assess your specific needs.