When selecting a gas-fired instantaneous water heater, understanding technical specifications ensures safety, efficiency, and comfort. Let's break down its parameters as below:
1. Gas Type & Pressure of Gas-Fired Instantaneous Water Heaters
● Gas Type: NG (Natural Gas) or LPG (Liquefied Petroleum Gas).
○ Critical Note: Using LPG in an NG-designed unit risks overheating and damage, while NG in an LPG system fails to heat water adequately.
● Gas Pressure: NG (1274-2000Pa) / LPG (2800-3100Pa).
○ Gastek can customize the gas-fired instantaneous water heater to regional gas pressure standards.
2. Heat Load or Input
● Rated(Nominal) Heat Load: It's declared by the manufacturer.
● Maximum heat load: It determines the maximum heat input of the unit.
● Minimum Heat Input: Controls summer comfort. GASTEK's 4-segments modulation enables a 3 degree minimum temperature rise, ideal for warm climates.
3. Why These Matter for a Gas-Fired Instantaneous Water Heater
● Mismatched gas types accelerate wear or reduce performance.
● Proper heat load ensures adequate hot water flow.