As far as installing HVAC thermostats is concerned, the larger the system is doesn’t always mean the better it is. To be honest, some systems that are too large for a home will come with increased maintenance costs, leave alone the high installation cost.

Currently, there is a technology that allows you to accurately size a new HVAC unit, although some contractors still maintain using casual sizing methods. In fact, some contractors will oversize an HVAC system in purpose simply because a customer demanded it or to allow for future home expansion or, in some cases, to reduce the number of callbacks.

Here is why oversizing is not the best and how the perfect sizing will reduce energy consumption and save you lots of money.

Why Oversizing Is Not the Best

If you choose to install an oversized hvac thermostats, you are probably going to face a lot of issues. For instance, short-cycling is a problem that is so common with too large systems.Short-cycling referred to when an HVAC system runs and stops at inefficient short intervals.This majorly happens when the capacity of the systems cools or heats a home very quickly.

Increased system usage brings about wear and tear of major interior parts, thus a reduced lifetime of the system in question. Let’s take, for example, a blow that has too much power. It will create excessive duct pressure hence causing some duct leakages.

A system that frequently encounters short-cycling might not be efficient in terms of adequately dehumidifying your house. The clammy and muggy feeling in your home might be due to an oversize HVAC thermostat.

The worst effect of oversizing is having some uncomfortable temperature variations.

Importance of Load Calculation

An excellent load calculation takes into account some of the unpredictable variables. The ideal size will be higher by 10-15% of the ‘right’ size. Whenever you are conducting load calculation, here are some of the factors to keep in mind.

• Intended use

• Local climate

• Age of your building

• Shape, size and your home’s orientation

• Insulation and ventilation

• The number of people in the building

• Heat that is generated from machinery or lighting

An excellent load calculation will make sure that an HVAC thermostat will maintain the desired temperature without necessarily overworking itself. The calculation should also reveal some of the potential home improvement areas that might be causing excessive heat gain or loss. Well, this is not the primary purpose of the calculation, but it is as equally as useful.

Perfectly sizing your HVAC thermostat system will take more than just an educated guess to be able to perfect. An excellent calculation will make sure that your HVAC thermostat is running efficiently and effectively for low utility and maintenance costs as well as the ideal comfort levels.