Solar system sizing
What kind of backup system should I use with my solar installation?
What kind of backup system for my solar installation? This is a common question. DualSun has no particular recommendation for the choice of backup sys...
How do I determine the required tank volume?
There are two cases to consider when dimensioning the volume of a hot water tank: For tanks with an integrated backup heating system the tank volume s...
How many Dualsun SPRING4 panels are needed to heat a pool?
For solar pool heating, the formula recommended by Dualsun (and used by the MyDualsun platform) is as follows: With: Geographic coefficient = 0.5 if t...
How many Dualsun finned SPRING4 panels are necessary to provide heat to a ground source heat pump ?
We recommend the following sizing ratios depending on the heat pump technology and the lower temperature limit of its evaporator: PAC technology Low ...
Can Dualsun SPRING panels be used before or with solar thermal panels?
No , Dualsun SPRING panels cannot be used in the same hydraulic loop with thermal solar panels. We advise the following requirements: If the setpoi...
How to dimension the expansion tank for a Dualsun installation?
Expansion tank is mandatory with SPRING4 installation. In order to size it properly you can follow the rule : Vexpansion_fluid = Vinstallation x Ce...
How do I choose the best DualSun configuration to heat both my domestic hot water (DHW) and my pool?
There are two possibilities for a solar water heater and pool heating application: solar water heater offer (CESI) + direct pool heating = 2 independe...
What should I prepare for a Dualsun installation in the case of a new construction or a major renovation?
To help you devise your plans or as part of your building permit application, you must take the following into consideration: The physical characteris...
What pre-sizing and pricing ratio could be taken into account for a collective project?
For engineering firms and energy specialists working on collective building projects in the competition phase, we recommend using our ‘quick ratios’ t...
Which software integrates Dualsun Panels in their database ?
The Dualsun panel is present today in the databases of most standard solar sizing software. Below is the list of software that integrates our Dualsun ...
What pre-sizing and pricing ratio could be taken into account for a DUO collective project?
For engineering firms and energy specialists working on collective building projects in the competition phase, we recommend using our ‘quick ratios’ t...