As summer approaches, adjusting your instant gas water heater’s temperature isn’t just about comfort—it’s a smart way to reduce gas bills. Here’s how to optimize settings for three common instant gas water heater types:  

## **1. For instant gas water heater equipped with a gas water linkage valve**  

- **Step 1**: Turn the **Summer/Winter knob** to “Summer” or to the LOW setting.(if applicable)    

- **Step 2**: Reduce the “Gas flow knob** to minimum.  

- **Step 3**: Maximize the **Water flow knob** (if water pressure permits).  

*Pro Tip*: Install a booster pump upstream if inlet water is too hot, increasing flow to lower output water temperature.  

## **2. For low-water-pressure start-up instant gas water heater equipped with a water flow sensor**  

- **Step 1**: Turn the **Summer/Winter knob** to “Summer” or to the LOW setting. (if applicable)  

- **Step 2**: Minimize the “Gas flow knob”.  

- **Step 3**: Locate the **water adjusting valve** connecting the inlet pipe; open it fully to maximize flow.  

## **3. For smart instant gas water heater**  

- **Step 1**: Set desired temperature via the touch screen display (e.g., 38°C).  

- **Step 2**: The system auto-adjusts gas/water ratios to get the desired temperature.

*Fix Overheating*: Add a booster pump if inlet water exceeds 30°C—extra flow counteracts excessive heating.  

## **The Energy-Saving Payoff**  

Proper adjustments can cut summer gas usage by **15–20%**. For example:  

- In winter, the hot water temperature is 45 degrees Celsius, while in the summer it only needs 38 degrees Celsius, which can save 15% of gas consumption.

- Avoid scalding while extending heat exchanger’s lifespan through reduced thermal input.  

## **Upgrade to 4-Stage Modulation**  

GASTEK’s latest **fan-forced type instant gas water heater** feature:  

✅ **3K Minimum Temperature Rise**: Perfect for summer (no need for manual adjustments).  

✅ **Auto-Sensing**: Detects inlet water temperature to optimize gas consumption.  

✅ **4 Power Levels**: Seamlessly switches between 5kW–48kW based on demand.  

Contact GASTEK’s experts for a free consultation on energy-efficient upgrades!