diff --git a/R/Collect.R b/R/Collect.R
index bf387297722c15e61e36d6b768624aec0b73c605..33d3a5ed200437f30364483d1ed26a2171b07c3d 100644
--- a/R/Collect.R
+++ b/R/Collect.R
@@ -76,10 +76,7 @@ Collect <- function(startr_exec, wait = TRUE, remove = TRUE) {
     stop("Parameter 'startr_exec' must be an object of the class ",
          "'startR_exec', as returned by Collect(..., wait = FALSE).")
   }
-  if (Sys.which('ecflow_client') == '') {
-    stop("ecFlow must be installed in order to collect results from a ",
-         "Compute() execution.")
-  }
+  
   cluster <- startr_exec[['cluster']]
   ecflow_server <- startr_exec[['ecflow_server']]
   suite_id <- startr_exec[['suite_id']]
@@ -89,11 +86,6 @@ Collect <- function(startr_exec, wait = TRUE, remove = TRUE) {
   timings <- startr_exec[['timings']]
   ecflow_suite_dir_suite <- paste0(ecflow_suite_dir, '/STARTR_CHUNKING_', 
                                    suite_id, '/')
-  if (!is.null(cluster[['temp_dir']])) {
-    remote_ecflow_suite_dir_suite <- paste0(cluster[['temp_dir']], 
-                                            '/STARTR_CHUNKING_', 
-                                            suite_id, '/')
-  }
   find_task_name <- function(received_file) {
     file_name <- received_file
     parts <- strsplit(file_name, '__')[[1]]
@@ -116,8 +108,39 @@ Collect <- function(startr_exec, wait = TRUE, remove = TRUE) {
   }
   done <- FALSE
   attempt <- 1
+  if (Sys.which('ecflow_client') == '') {
+    startR:::.warning("Retrieving the data from remote cluster without ecFlow installation.")
+    if (timings[['nchunks']] != sum(grepl('output.*\\.Rds', 
+                                    list.files(paste0(cluster[['temp_dir']],
+                                              '/STARTR_CHUNKING_',
+                                              suite_id, '/'))))) {
+      stop("Check all jobs jave finished successfully.")
+    }
+    # remove false to test the results
+    t_begin_merge <- Sys.time()
+    result <- startR:::.MergeChunks(cluster[['temp_dir']], suite_id, remove = FALSE)
+    t_end_merge <- Sys.time()
+    timings[['merge']] <- as.numeric(difftime(t_end_merge, t_begin_merge, units = 'secs'))
+    received_files <- list.files(paste0(cluster[['temp_dir']], '/STARTR_CHUNKING_',
+                                        suite_id, '/'), full.names = TRUE)
+    received_timings_files <- received_files[grepl('timings$', received_files)]
+    for (timings_file in received_timings_files) {
+      times <- readRDS(timings_file)
+      timings[['queue']] <- c(timings[['queue']], times['queue'])
+      timings[['job_setup']] <- c(timings[['job_setup']], times['job_setup'])
+      timings[['load']] <- c(timings[['load']], times['load'])
+      timings[['compute']] <- c(timings[['compute']], times['compute'])
+    }
+  } else {
+    if (!is.null(cluster[['temp_dir']])) {
+      remote_ecflow_suite_dir_suite <- paste0(cluster[['temp_dir']],
+                                              '/STARTR_CHUNKING_',
+                                              suite_id, '/')
+  }
+
   sum_received_chunks <- sum(grepl('output.*\\.Rds', 
                                    list.files(ecflow_suite_dir_suite)))
+
   if (cluster[['bidirectional']]) {
     t_transfer_back <- NA
   } else {
@@ -283,6 +306,7 @@ Collect <- function(startr_exec, wait = TRUE, remove = TRUE) {
     # long ago, so is not straightfowrard to work out total time.
     timings[['total']] <- NA
   }
+}
   message(paste0("* Computation ended successfully."))
   message(paste0("*   Number of chunks: ",
                  timings[['nchunks']]))