diff --git a/src_data/pages/settings.html b/src_data/pages/settings.html
index 0b6e3a2..f488093 100644
--- a/src_data/pages/settings.html
+++ b/src_data/pages/settings.html
@@ -310,20 +310,17 @@
         
                 <label>
                   <span data-i18n>settings.equitherm.obs1_radiator</span>
-                  <input type="number" inputmode="decimal" name="equitherm[obs1_radiator]" min="10" max="90" step="0.1"
-                    required>
+                  <input type="number" inputmode="decimal" name="equitherm[obs1_radiator]" min="10" max="90" step="0.1">
                 </label>
         
                 <label>
                   <span data-i18n>settings.equitherm.obs2_outdoor</span>
-                  <input type="number" inputmode="decimal" name="equitherm[obs2_outdoor]" min="-50" max="50" step="0.1"
-                    required>
+                  <input type="number" inputmode="decimal" name="equitherm[obs2_outdoor]" min="-50" max="50" step="0.1">
                 </label>
         
                 <label>
                   <span data-i18n>settings.equitherm.obs2_radiator</span>
-                  <input type="number" inputmode="decimal" name="equitherm[obs2_radiator]" min="10" max="90" step="0.1"
-                    required>
+                  <input type="number" inputmode="decimal" name="equitherm[obs2_radiator]" min="10" max="90" step="0.1">
                 </label>
               </div>
               <button type="button" id="calibrateEquitherm" data-i18n>settings.equitherm.calibrate</button>
@@ -1258,4 +1255,4 @@
       });
     </script>
   </body>
-</html>
\ No newline at end of file
+</html>