2. Know the AFUE Rating
The AFUE or annual fuel utilization efficiency is the ideal way to decide the efficiency of the heater. The AFUE is a percentage measuring the efficiency of the heater in converting fuel to energy. So, the higher the AFUE rating, the more efficient the system is.
For example, if the AFUE rating is 98%, it means 98% of the fuel is being used to heat your home and just 2% energy is being lost. Nevertheless, an older heating system might have an AFUE rating as low as 56%. Thus, it means 44% of the energy that is being generated from the fuel is being wasted.
To check the AFUE rating of your heater, you can take a look at the user manual present on the sticker present inside the heater cabinet. In case you fail to locate the rating through these options, you can get in touch with the manufacturer or search the model number on the internet.
If the heater has to be highly efficient, the AFUE rating needs to be 90% or higher. But if a heater has an 80% rating, then it is sufficiently efficient. It is pretty common in temperate climates. You need to make sure that your new heater’s AFUE rating is at least 78%.
3. Check the Energy Bills
Energy bills might fluctuate from one month to the other but that is common. The reasons behind this are living conditions, changing seasons, or an increase in energy cost.
But if you compare the amount of energy being used every month, you can compare if the heater is becoming less efficient. In case the energy bill is a little higher than the previous years, it is a sign that the heater is losing efficiency.
Keep a check on the energy bills. However, you shouldn’t forget that other factors might influence the energy bills. For instance, lack of maintenance and changing climate patterns play a significant role in influencing energy bills. So, track these shifts as it will help you make some smarter choices when it comes to heating your abode.