Truth About HVAC Sizing & The Importance

As a homeowner, there are some myths concerning heating and air conditioning. They are often confusing. However, believing these myths may cause poor maintenance practices, high energy costs and damage your air conditioner’s system. Our goal is to help you dispel some myths related to HVAC equipment. Check out these myths about bigger hvac systems and common hvac myths we have come across in the industry.

A Bigger HVAC System is Always Better, Right?

Many homeowners are hoping for more efficiency when it comes to cooling or heating. But it’s rarely true. -. An excessively large HVAC system can be harmful to the health, resulting in frequent switching and the system is then used and discarded frequently, which can waste energy and reduce system longevity. The best HVAC system will depend on the size of your home as well as your cooling needs. A simple Manual J report with residential load calculation from a professional hvac contractor or hvac technician will explain a lot from a square footage perspective.

No Need for Regular Maintenance

In the absence of routine maintenance, it can cause major HVAC problems, especially system malfunctions. Maintenance is a crucial component in maintaining and improving a system as it helps diagnose and correct problems. One commonly used HVAC myth says you can only repair your system after it is apparent. This should happen as it must be performed once or twice annually. Most common hvac myths come from oversized hvac system and poor indoor air quality from heating and cooling.

Myth: Duct Tape is good for Duct Leaks

Fact: Duct tape is unfortunately not meant to repair leaking ducts. Various sorts of foil tape are used for this purpose, but it usually isn’t the type of tape homeowners typically own. Especially worse is when tape was used as a replacement for the chimneys that get extremely hot. The ducting material is bound to melt, which can be dangerous to people as well as not being useful for others.

Tons & BTU Matter the Most in HVAC System Sizing

A common way of measuring cooling capability is in tons. But not all HVAC manufacturers list their AC unit sizes in ton. Certain users are using BTU hours. 1 ton = 122,000 BTU per day. A 2.5 liter unit also has a cooler power that is similar to a 30000 BTU unit. British thermal units (BTUs) are units that produce heat. One BTU represents heat that raises the temperature of one gallon of water by one degree Fahrenheit. In HVAC, the BTU/hour is based on the amount of heat a cooling system can remove in one hour if it has not been running. The 2.5 ton system is capable of removing 3000 BTUs of electricity from a space within an hour.

AC Size vs. Efficiency Rating

Tell us what makes an HVAC unit a different size and how efficient it is. Size is measured in tons, whereas efficiency in SEER is measured for air conditioner purchases purchased before January 1, 2023. Both ratings affect your electricity bills greatly. The higher the SEER, the less energy your cooling device uses for cooling your house – its a good solution. The average 18SEER2 air conditioner will require approximately 35% less electricity for operation. Our site also provides you with a free calculator to compare SEERS ratings. Making higher energy bills technically true especially for new construction air conditioners. Common misconceptions come from not making informed decisions and proper size.

The Air Filter Only Requires Yearly Replacement

Although some think that an annual filter cleaning for HVAC systems can be helpful, it is necessary to have an annual routine to maintain optimal functioning. Switching from yearly to monthly filter replacement is more efficient and more reliable. It provides filtration of indoor and exterior air pollution that contain dust and other air-contaminating substances and removes traces. It helps you breathe more easily. This prevents asthma and other respiratory problems. These filters have limitations and must be replaced when an accumulation of dirt accumulates on their surfaces.

Myth: A new HVAC system will increase the value of my home as I’m getting ready to sell

Well, possibly, but not often enough. It’s important that home inspectors without HVAC skills aren’t looking for sophisticated equipment. Customers will usually look mainly for two things. Put your new furnace in will remove them from the negotiations table. When the other needs replacement it might use it against you for your own benefit. However, the difference between a single-step and a variable-speed is less likely to affect the outcome.

Myth: A high-efficiency HVAC system will always lower my energy bills

The technical truth is as described but we are unable to promise cost savings for every customer. Tell me the temperature at 67°C is okay. In the winter, cost savings are far less than in homes where the furnace runs continuously at 72 o’clock. The climatic influence also makes saving illusion. Yes, minute by minute, a newly redesigned furnace can cost less than an old furnace, a 20year old has lower efficiency.

Problems with an Oversized Air Conditioner

It’s usually a problem for an oversized cooling unit to cool down. Also, the motor will cycle at the same rate as expected. The short cycle is the term used. Short cycles cause higher electricity prices, temperature fluctuations and uneven coolers. Plus, this increases wear on component parts and pipework, allowing breakdowns and shortening AC life. Short cycling may also affect moisture levels. In addition, your air conditioner controls humidity inside your house. When a unit cannot operate long enough it cannot absorb enough humidity. The humid environment promotes growth of mould and mildew.