Follow the steps to complete the worksheet successfully.

1. Click the ‘Get Form’ button to obtain the worksheet and open it for editing.
2. Enter the project address at the top of the form. In the 'Completed by' field, input your name or the name of the person filling out the worksheet. Additionally, provide a contact telephone number in the designated space.
3. Review the background section, which outlines the necessity of makeup air and combustion air, as per the UDC requirements. Familiarize yourself with the relevant compliance information to complete the form correctly.
4. In Section A, complete the table for intermittent exhaust fans by entering the number of each fan type used in your dwelling. Use either the typical exhaust CFM values provided or fill in actual values if known. Calculate the total CFM for each fan type and summarize the sub totals.
5. Apply the intermittency adjustment factor to the subtotal to arrive at the adjusted total. Include any constant exhaust fans without dedicated makeup air in your grand total calculation.
6. Indicate how you plan to provide makeup air by checking the appropriate boxes listed in the worksheet. Ensure that you follow the guidelines for opening restrictions and recognize required adjustments based on the type of louvers or screening.
7. Move to Section B to assess combustion air requirements. Start by completing the table for open combustion appliances. Note the BTU/hr input ratings and calculate the total BTU/hr for each group of appliances.
8. Determine the room volume for each group of appliances and check if the space meets the requirements for providing combustion air. Select the appropriate method for providing combustion air based on your findings.
9. Complete the calculations for the selected method, noting any necessary adjustments for opening restrictions. Ensure all measurements are accurate as they will impact air quality and safety.
10. After filling out all required sections and verifying the accuracy of your entries, save any changes made to the worksheet. You can choose to download, print, or share the completed form as needed.

Start filling out your (UDC) Makeup And Combustion Air Worksheet online to ensure compliance and safeguard your living space.