## Is Gas Or Electric Cheaper? Shocking Cost Difference (\$2727,60 Per Year)

What is cheaper: gas or electric? The age-old question. Pretty much every big household appliance you can think of – air conditioner, furnace, land mower, tankless water heater, fireplace, and so on – can run on either electricity or gas. The question ‘is gas or electric’ cheaper makes a lot of sense, and knowing the … Read more

## How Many Outlets On A 20-Amp Circuit? (+ How Many Watts)

The 20-amp circuit is the most common circuit in the US. Since a lot of our visitors have asked ‘how many outlets can you put on a 20-amp circuit’, we decided to give you some insight on this topic. We will not only look at the number of plugs on a 20-amp breaker but, more … Read more

## Battery Life Calculator: How Long Does A Battery Last? (Ah, V, Hours)

In our article discussing Ah (ampere-hours) and Wh (watt-hours), we got a ton of questions about the longevity of batteries. The question “How long does a battery last?” was a predominant one. To help everybody trying to calculate how long will a battery last, we have created a Battery Life Calculator. It’s quite useful knowing … Read more

## What Size Heat Pump Do I Need? Heat Pump Size Calculator

Sizing a heat pump seems like a daunting task. How do I calculate what size heat pump do I need? How many BTU heat pump do I need? This is usually an estimate that you need an HVAC expert for. We are going to simplify how to calculate what size heat pump do you need. … Read more

## Convert BTU To Watt: Calculator + Conversion Chart (1 BTU = 0.293 W)

“How many watts is [INSERT NUMBER] BTU?” This is a very common question. When you know how many BTU you have, you’re interested in how many watts is that. For that, you will need a BTU to watt converter. How to convert BTU to watts? You only need to know one thing: 1 BTU is … Read more

## Convert Watts To BTU: Calculator + Conversion Chart (1 W = 3.412 BTU)

Watts are a basic unit of power. BTU (British Thermal Unit) is a unit of heat. We need to convert watts to BTU when it comes to different HVAC devices (including air conditioners, furnaces, and so forth). Watt is a SI unit of power equivalent to J/s (joule per second). BTU or British Thermal Unit … Read more

## Convert Celsius To Fahrenheit (°C to °F): Calculator, Chart, Equation

Degrees of Celsius and degrees of Fahrenheit are both units for measuring temperature. To properly read HVAC specification sheets (for air conditioners, furnaces, etc.), you sometimes have to convert Celsius to Fahrenheit (°C to °F). Applies to general weather, body temperature, cooking recipes, and a number of other applications as well. Celsius is usually used … Read more

## Understanding CEER Rating: AC Energy-Efficiency (+ CEER Chart)

In the Energy Star certification program for room air conditioners, there is Section 3: Core Qualification Criteria that states: “CEER shall be greater than or equal to the Minimum CEER (CEERmin) as calculated per Equation 2.” If you open a window AC unit’s specification sheet, you will likely see the CEER rating between 8-15. Here … Read more

## Amp-Hours To Watt-Hours (Ah To Wh): Calculator + Chart

To calculate watts-hours from amp-hours, we need to use the following formula: Watt-hours = Amp-hours × Volts As we can see, amp-hours multiplied by voltage equals watt-hours. Using this equation, we can accurately convert watt-hours from amp-hours. Below the calculator, you can also check an Ah to Wh conversion chart for 120V and 220V circuits, … Read more

## Watt Hours To Amp Hours Conversion (Wh To Ah): Calculator + Chart

Watt-hours and amp-hours are both units for electric charge. 1 watt-hour is defined as 1 watt of power expended for 1 hour. 1 amp-hour is defined as 1 amp of current expended for 1 hour. How do you convert watt-hours to amp-hours? It is possible to convert watt-hours to amp-hours using the following formula: Watt-hours … Read more