CPH HVAC Studio Engineering ToolsHVAC design software for Windows

Refund policy

Last updated: 2026-11-10

14 days, no questions — our own promise

If Pro is not right for you, you get a full refund within 14 days of the first purchase and within 14 days of every renewal. You do not need to give a reason, and the refund applies also if you have used Pro. This is our own promise, in addition to your statutory rights (below).

How to ask

Our reseller Paddle makes the refunds. Use the support link in Paddle's receipt e-mail, or paddle.net. You can also write to office@cphhvacstudio.dk, and we arrange it with Paddle.

What happens

  • The money goes back to the payment method you used, where possible.
  • A refund of the first purchase removes Pro from the account, and the program continues as Free. Your projects and data stay as they are.
  • A refund of a renewal ends the licence in the same way: the program continues as Free (Terms of Service, section 7.2).
  • A temporary offline activation file from the purchase stops working 21 days after the purchase.
  • A refund for only some of the seats in a purchase is handled by hand.

Your statutory rights

Consumers in the EU and the UK have a statutory right to withdraw from the purchase within 14 days of the day of purchase without giving a reason. You exercise it against the seller, Paddle, through the withdrawal function in Paddle's customer portal, by e-mail to Paddle's support address shown on your receipt, or with the model withdrawal form; you may also send the notice to office@cphhvacstudio.dk and we forward it to Paddle the same day. Paddle refunds within 14 days of your notice. Our 14-day refund above applies in addition and also covers renewals.

Model withdrawal form

(Complete and return this form only if you wish to withdraw from the contract.)

To: Paddle.com Market Limited, 30 Old Bailey, London EC4M 7AU, United Kingdom, help@paddle.com
I/We () hereby give notice that I/We () withdraw from my/our () contract for the supply of the following digital content ()/for the provision of the following service (*):
Ordered on ()/received on ():
Name of consumer(s):
Address of consumer(s):
Signature of consumer(s) (only if this form is notified on paper):
Date:
(*) Delete as appropriate.

Ending the licence early (consumers)

If you are a consumer, you may also end the licence early in your account, with one month's notice to the end of a month, and get back the price of the full months that remain — see Terms of Service, section 6.4.

After 14 days

The licence runs to the end of the paid year. You can cancel the renewal at any time: in your account, in Paddle's customer portal, through the link in every renewal e-mail, or without signing in with the cancellation form (Cancel subscription). If you are a consumer, you can also end the licence early (above).