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Rytons Calculators

Please select the calculator you wish to use

 
 
 

Background Calculators


Please select the country you require

 
 

England, Wales and Northern Ireland

Total Floor Area (m2):   
Dwelling Type:    Single-storey located up to and including the fourth storey above ground level
Multi-storey, and single-storey located more than four storeys above ground level
No. of Bedrooms:   
Design Air Permeability:    Type A: Any design air permeability
Type B: Design air permeability leakier than 5m3/h.m2 at 50 Pa
Facades:    Single facade (one exposed facade only)
Multiple facades (two or more exposed facades)
     
   
Results

Scotland

Permeability:    Type A: Infiltration below 10m3/h/m2
Type B: Infiltration rate exceeds 10m3/h/m2
Apartment, Lounge, Bedroom:   
Kitchens:   
Utility Rooms:   
Bathroom w/wo a WC:   
Toilet Only:   
     
   
Results

Southern Ireland

Permeability:    Type A: Reliant solely on ventilation products
Type B: leakier than 5m3/(h.m2) at 50 Pa. Air infiltration
Habitable Rooms:   
Kitchens:   
Utility Rooms:   
Bathroom and Shower Rooms:   
WC Only:   
     
   
 
Results

Underfloor Calculator


Total Floor Area (m2):   
Run of Exterior Wall (m):   
 
    
 
Results

Stove Ventilation Calculator


Please select the country you require

 
 

England, Wales and Northern Ireland

House Year
Air Permeability: 		  
Appliance Type:   
Select kW:   
 
   
 

Scotland

Appliance Type:   
Select kW:   
 
   

Southern Ireland

House Year
Air Permeability: 		  
Appliance Type:   
Select kW:   
 
   

Open Fire Calculators


Please select the country you require

 
 

England, Wales and Northern Ireland

Appliance Type:   
Flue or Throat Shape:    Rectangular Flue or Throat
Circular Flue or Throat
Flue or Throat Size:
 		  mm Wide x mm Deep
 
   

Scotland

Appliance Type:   
Flue or Throat Shape:    Rectangular Flue or Throat
Circular Flue or Throat
Flue or Throat Size:
 		  mm Wide x mm Deep
 
   

Southern Ireland

Appliance Type:   
Flue or Throat Shape:    Rectangular Flue or Throat
Circular Flue or Throat
Flue or Throat Size:
 		  mm Wide x mm Deep
 
   

Gas Appliance Calculators


Please select the country you require

 
 

England, Wales and Northern Ireland

House Year
Air Permeability: 		  
Appliance Type:   
Select kW:   
 
   

Scotland

House Year
Air Permeability: 		  
Appliance Type:   
Select kW:   
 
   

Southern Ireland

House Year
Air Permeability: 		  
Appliance Type:   
Room Volume:   
Select kW: