Skip to main content

BASC Search

Filter

DHW Systems Comparison

RED Calc Tool
What this tool does This tool allows you to calculate the annual cost of heating domestic hot water. In addition, you may compare the annual costs of up to three systems to a base system. Four water heating fuel types are available; electricity, natural gas, LPG, and #2 oil. You can use this tool...

DHW Volume per Use

RED Calc Tool
What this tool does This tool determines the volume of hot water used given an amount of mixed (hot + cold) water used and the temperatures of the hot, cold, and mixed water. The amount of mixed water can be specified by volume directly, or from a flow rate and duration. Calculated values Hot water...

Water Flow Rate

RED Calc Tool
What this tool does This is a “solve-all” tool that relates the volume of water drawn, the duration of the water draw, and the flow rate. The primary expected use case is determining flow rate using a test container with a known volume and a stopwatch. The tool was developed as an aid in using the...

Electrical Usage

RED Calc Tool
What this tool does This tool allows you to easily calculate the annual electrical cost of operating a ventilation fan or any other electrical appliance that is set up for continuous or intermittent use. If the fan is set up for intermittent use, you will need to know the operating schedule in order...

Weather Station Data

RED Calc Tool
What this tool does First, the embedded Google map feature helps you find the closest (TMY) weather station when your location is close to a state/province or national border and the closest station is actually in a different state/province/country. These are the same weather stations that are used...

ASHRAE 62.2-2013

RED Calc Tool
What this tool does The ASHRAE 62.2-2013 RED Calc tool handles all the requirements of the Standard, including new and existing buildings, the alternative compliance path, and infiltration credit. We have added useful features, including the advanced blower door inputs option, the fan-run time...

ASHRAE 62.2-2010

RED Calc Tool
What this tool does The ASHRAE 62.2-2010 RED Calc tool handles all the requirements of the Standard, including new and existing buildings, the alternative compliance path, and infiltration credit. We have added useful features, including the advanced blower door inputs option and the fan-run time...

ASHRAE 62.2-2010 CA

RED Calc Tool
What this tool does The ASHRAE 62.2 California tool handles all the requirements of the unique version of the 62.2 Standard, including new and existing buildings, single-family and multifamily buildings, the alternative compliance path, and infiltration credit. We have added useful features...

Advanced Infiltration

RED Calc Tool
What this tool does This tool calculates the hourly infiltration for a selected date range (one day to one year) and the resulting sensible load on a heating and/or cooling system. Daily average infiltration rates (stack, wind, and combined) and daily infiltration load on heating and cooling systems...

Air Leakage Metrics

RED Calc Tool
What this tool does You can calculate up to eight air leakage metrics, including ACH 50, equivalent leakage area (EqLA), effective leakage area (ELA), specific leakage area (SLA), and more. Determine if your building complies with the International Energy Conservation Code or Energy Star Qualified...

Box Airflow

RED Calc Tool
What this tool does This tool, along with a cardboard box and a digital manometer, allows you to accurately measure exhaust airflow at a grille. This custom-made airflow measurement device can be made on site to accommodate tight fitting spaces or exhaust fan grilles that are too large for other...

Depressurization Analysis

RED Calc Tool
What this tool does The Depressurization Analysis “solve all” tool allows you to solve for “Building leakage @ 50Pa” (DTL), “Exhaust flow” of exhausting appliances, or “Depressurization” (combustion appliance depressurization limit). The primary purpose of this tool is to allow you to determine if...

Design Infiltration

RED Calc Tool
What this tool does This tool calculates the stack-induced, the wind-induced, and combined infiltration rates, as well as the resulting sensible heat loss or gain, forgiven indoor/outdoor temperatures and wind speed. The calculations use the same, powerful infiltration model, AIM-2, that was used to...

Pitot Tube Airflow

RED Calc Tool
What this tool does This tool, along with a pitot tube and a digital manometer, allows you to accurately measure the airflow within a duct of 4 inches (10.2 cm) or greater, such as that of a kitchen range hood or dryer vent. It may be used with a standard steel pitot tube, such as a Dwyer series 160...

Zone Pressure Diagnostics

RED Calc Tool
What this tool does This tool allows you to easily achieve accurate Zone Pressure Diagnostics (ZPD) testing results. ZPD calculated with this tool will: Determine the amount of air leakage between the house and an intermediate (or attached) zone such as an attic, basement, or garage. Determine the...

Dense-Pack Insulation

RED Calc Tool
What this tool does This tool will help determine the information you need for installing dense-pack insulation, including the number of bags of insulation and the installed density. A choice of two framing options is given, hidden and exposed, to help you accurately calculate the framing-factor and...

Infrared R-Value

RED Calc Tool
What this tool does With the use of this tool and an infrared thermometer or camera, you can determine the R-value of an enclosed cavity. If the R-value is known you can also use this tool to determine the interior surface temperature given the exterior surface temperature, which can be useful for...

Loose-Fill Insulation

RED Calc Tool
What this tool does This tool will help determine the information you need for insulating an attic with loose-fill insulation. The insulation can be cellulose, fiberglass, rock wool, or any other loose-fill insulation. Four results can be calculated, including the all-important number of bags of...

Parallel Path R-Value

RED Calc Tool
What this tool does The tool calculates a single R-value for an area made up various materials with distinct R-values. This method assumes that heat flows through each of these distinct areas independently (in parallel), as opposed to flowing from one to the other. Calculated values Total area...

Surface Heat Transfer

RED Calc Tool
What this tool does This tool is most often used to find heat transfer through a surface, but because it is a solve-all tool, you may solve for any one of the five values. Calculated values Heat transfer; or Temperature difference; or R-value; or Time interval; or Area. Tips Clicking the label for...

Moisture Metrics

RED Calc Tool
What this tool does You can calculate up to seven moisture metrics — saturation vapor pressure, relative humidity, dew point temperature, water vapor density, vapor pressure, wet-bulb temperature, and humidity ratio — merely by entering dry-bulb temperature and one of the previous values. It’s like...

Wood Moisture Content

RED Calc Tool
What this tool does You can use this tool for many purposes, usually with help of a moisture meter (see photo below), including the determination of average relative humidity. Enter the air temperature and equilibrium moisture content of a sample piece of wood that has been in the space. The RED...

DHW Average Daily Usage

RED Calc Tool
What this tool does This tool calculates average daily hot water use based on the amount of hot water used by various appliances and use incidents. Default usage values are included. This tool is helpful in determining the value for the “Daily hot water usage” input in the DHW Systems Comparison...

DHW First Hour Rating

RED Calc Tool
What this tool does This tool helps you determine the First Hour Rating for the purpose of sizing a storage water heater. This method is based on guidance from the Air-Conditioning, Heating and Refrigeration Institute (AHRI), the industry standard for sizing storage water heaters, Calculated values...

DHW Instantaneous Sizing

RED Calc Tool
What this tool does This “solve-all” tool is used for sizing an instantaneous (tankless) hot water heater. It can also be used to determine the maximum hot water flow rate for a given system and temperature rise. Calculated values Temperature rise – the difference between the temperature of the cold...

ASHRAE 62.2-2016

RED Calc Tool
What this tool does The ASHRAE 62.2-2016 RED Calc tool handles all the requirements of the Standard, including new and existing buildings, the alternative compliance path, and infiltration credit. We have added useful features, including the advanced blower door inputs option, the fan-run time...

Filters